Document and Entity Information
v5.17.1.24
Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2015
Mar. 10, 2016
Jun. 30, 2015
Document and Entity Information [Abstract]      
Entity Registrant Name ARRHYTHMIA RESEARCH TECHNOLOGY INC /DE/    
Entity Central Index Key 0000819689    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   2,816,639dei_EntityCommonStockSharesOutstanding  
Entity Public Float     $ 17,471,600dei_EntityPublicFloat
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    

Consolidated Balance Sheets
v5.17.1.24
Consolidated Balance Sheets (USD $)
Dec. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 272,291us-gaap_CashAndCashEquivalentsAtCarryingValue $ 209,398us-gaap_CashAndCashEquivalentsAtCarryingValue
Trade accounts receivable, net of allowance for doubtful accounts of $60,000 at December 31, 2015 and $45,000 at December 31, 2014 2,798,353us-gaap_AccountsReceivableNetCurrent 3,536,747us-gaap_AccountsReceivableNetCurrent
Inventories 2,118,712us-gaap_InventoryNet 2,514,241us-gaap_InventoryNet
Prepaid expenses and other current assets 614,129us-gaap_PrepaidExpenseAndOtherAssetsCurrent 519,582us-gaap_PrepaidExpenseAndOtherAssetsCurrent
Total current assets 5,803,485us-gaap_AssetsCurrent 6,779,968us-gaap_AssetsCurrent
Assets held for sale, net 665,000us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
Property, plant and equipment, net 6,626,069us-gaap_PropertyPlantAndEquipmentNet 7,618,901us-gaap_PropertyPlantAndEquipmentNet
Intangible assets, net 18,645us-gaap_IntangibleAssetsNetExcludingGoodwill 134,022us-gaap_IntangibleAssetsNetExcludingGoodwill
Other assets 268,835us-gaap_OtherAssetsNoncurrent 570,357us-gaap_OtherAssetsNoncurrent
Total assets 13,382,034us-gaap_Assets 15,103,248us-gaap_Assets
Current liabilities:    
Revolving line of credit, current portion 0us-gaap_LinesOfCreditCurrent 2,071,495us-gaap_LinesOfCreditCurrent
Equipment line of credit, current portion 35,718hrt_EquipmentLineOfCreditCurrentPortionDue 0hrt_EquipmentLineOfCreditCurrentPortionDue
Term notes payable, current portion 589,635hrt_TermNotesPayableCurrentPortion 490,341hrt_TermNotesPayableCurrentPortion
Subordinated promissory notes 473,135us-gaap_SubordinatedDebtCurrent 0us-gaap_SubordinatedDebtCurrent
Accounts payable 1,553,388us-gaap_AccountsPayableCurrent 1,857,156us-gaap_AccountsPayableCurrent
Accrued expenses and other current liabilities 275,777us-gaap_OtherLiabilitiesCurrent 405,975us-gaap_OtherLiabilitiesCurrent
Customer deposits 93,407us-gaap_CustomerDepositsCurrent 98,110us-gaap_CustomerDepositsCurrent
Deferred revenue, current 272,837us-gaap_DeferredRevenueCurrent 228,363us-gaap_DeferredRevenueCurrent
Liabilities from discontinued operations, current 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent 320,056us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
Total current liabilities 3,293,897us-gaap_LiabilitiesCurrent 5,471,496us-gaap_LiabilitiesCurrent
Long-term liabilities:    
Revolving line of credit, non-current portion 1,511,495us-gaap_LongTermLineOfCredit 0us-gaap_LongTermLineOfCredit
Equipment line of credit, non-current portion 301,132hrt_EquipmentLineOfCreditNetOfCurrentPortion 0hrt_EquipmentLineOfCreditNetOfCurrentPortion
Term notes payable, non-current portion 1,120,652hrt_TermNotesPayableNonCurrentPortion 1,330,755hrt_TermNotesPayableNonCurrentPortion
Subordinated promissory notes 0us-gaap_SubordinatedLongTermDebt 445,452us-gaap_SubordinatedLongTermDebt
Deferred revenue, non-current 272,181us-gaap_DeferredRevenueNoncurrent 610,430us-gaap_DeferredRevenueNoncurrent
Total long-term liabilities 3,205,460us-gaap_LiabilitiesNoncurrent 2,386,637us-gaap_LiabilitiesNoncurrent
Total liabilities 6,499,357us-gaap_Liabilities 7,858,133us-gaap_Liabilities
Commitments and Contingencies      
Shareholders' equity:    
Preferred stock, $0.001 par value; 2,000,000 shares authorized, none issued 0us-gaap_PreferredStockValue 0us-gaap_PreferredStockValue
Common stock, $0.01 par value; 10,000,000 shares authorized; 3,926,491 issued, 2,801,639 outstanding at December 31, 2015 and 3,926,491 issued, 2,778,339 outstanding at December 31, 2014 39,265us-gaap_CommonStockValue 39,265us-gaap_CommonStockValue
Additional paid-in-capital 11,381,536us-gaap_AdditionalPaidInCapital 11,336,693us-gaap_AdditionalPaidInCapital
Treasury stock at cost, 1,124,852 shares at December 31, 2015 and 1,148,152 shares at December 31, 2014 (3,069,496)us-gaap_TreasuryStockValue (3,133,883)us-gaap_TreasuryStockValue
Accumulated other comprehensive income 0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax 42,502us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Accumulated deficit (1,468,628)us-gaap_RetainedEarningsAccumulatedDeficit (1,039,462)us-gaap_RetainedEarningsAccumulatedDeficit
Total shareholders' equity 6,882,677us-gaap_StockholdersEquity 7,245,115us-gaap_StockholdersEquity
Total liabilities and shareholders' equity $ 13,382,034us-gaap_LiabilitiesAndStockholdersEquity $ 15,103,248us-gaap_LiabilitiesAndStockholdersEquity

Consolidated Balance Sheets (Parenthetical)
v5.17.1.24
Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Consolidated Balance Sheets [Abstract]    
Allowance for doubtful accounts receivable, current $ 60,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 45,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, par value per share $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 2,000,000us-gaap_PreferredStockSharesAuthorized 2,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Common stock, par value per share $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 10,000,000us-gaap_CommonStockSharesAuthorized 10,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 3,926,491us-gaap_CommonStockSharesIssued 3,926,491us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 2,801,639us-gaap_CommonStockSharesOutstanding 2,778,339us-gaap_CommonStockSharesOutstanding
Treasury stock, shares 1,124,852us-gaap_TreasuryStockShares 1,148,152us-gaap_TreasuryStockShares

Consolidated Statements of Operations and Comprehensive Income (Loss)
v5.17.1.24
Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Consolidated Statements of Operations and Comprehensive Income (Loss) [Abstract]    
Net sales $ 21,495,184us-gaap_SalesRevenueNet $ 24,070,292us-gaap_SalesRevenueNet
Cost of sales 18,332,346us-gaap_CostOfGoodsAndServicesSold 19,432,241us-gaap_CostOfGoodsAndServicesSold
Gross profit 3,162,838us-gaap_GrossProfit 4,638,051us-gaap_GrossProfit
Selling and marketing 1,086,586us-gaap_SellingAndMarketingExpense 1,015,279us-gaap_SellingAndMarketingExpense
General and administrative 2,355,484us-gaap_GeneralAndAdministrativeExpense 2,322,795us-gaap_GeneralAndAdministrativeExpense
Research and development 241,100us-gaap_ResearchAndDevelopmentExpense 408,867us-gaap_ResearchAndDevelopmentExpense
Total operating expenses 3,683,170us-gaap_OperatingExpenses 3,746,941us-gaap_OperatingExpenses
Income (loss) from continuing operations (520,332)us-gaap_OperatingIncomeLoss 891,110us-gaap_OperatingIncomeLoss
Other income (expense):    
Interest expense (260,300)us-gaap_InterestExpense (274,138)us-gaap_InterestExpense
Other income (expense), net (10,212)us-gaap_OtherNonoperatingIncomeExpense 46,184us-gaap_OtherNonoperatingIncomeExpense
Total other expense, net (270,512)hrt_OtherIncomeExpenseNet (227,954)hrt_OtherIncomeExpenseNet
Income (loss) from continuing operations before income taxes (790,844)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest 663,156us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income tax provision 932us-gaap_IncomeTaxExpenseBenefit 2,168us-gaap_IncomeTaxExpenseBenefit
Net income (loss) from continuing operations (791,776)us-gaap_IncomeLossFromContinuingOperations 660,988us-gaap_IncomeLossFromContinuingOperations
Discontinued Operations:    
Income (loss) from discontinued operations, net of tax provision of $0 for the years ended December 31, 2015 and 2014 (includes $42,502 accumulated other comprehensive income reclassification in 2015) 362,610us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity (1,779)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Net income (loss) (429,166)us-gaap_NetIncomeLoss 659,209us-gaap_NetIncomeLoss
Other comprehensive income:    
Reclassification of gains from foreign currency translation (42,502)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax  
Comprehensive income (loss) $ (471,668)us-gaap_ComprehensiveIncomeNetOfTax $ 659,209us-gaap_ComprehensiveIncomeNetOfTax
Earnings (loss) per share - basic    
Continuing operations $ (0.28)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.24us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Discontinued operations $ 0.13us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
Earnings (loss) per share - basic $ (0.15)us-gaap_EarningsPerShareBasic $ 0.24us-gaap_EarningsPerShareBasic
Earnings (loss) per share - diluted    
Continuing operations $ (0.28)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.23us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Discontinued operations $ 0.13us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
Earnings (loss) per share - diluted $ (0.15)us-gaap_EarningsPerShareDiluted $ 0.23us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding - basic 2,784,757us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 2,742,080us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted average common shares outstanding - diluted 2,784,757us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 2,863,098us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical)
v5.17.1.24
Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Consolidated Statements of Operations and Comprehensive Income (Loss) [Abstract]    
Tax provision, discontinued operations $ 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation
Accumulated other comprehensive income reclassification $ (42,502)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax  

Consolidated Statements of Changes in Shareholders' Equity
v5.17.1.24
Consolidated Statements of Changes in Shareholders' Equity (USD $)
Common Stock [Member]
Additional paid-in capital [Member]
Treasury stock [Member]
Accumulated other comprehensive income [Member]
Retained earnings (accumulated deficit) [Member]
Total
Stockholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2013 $ 39,265us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 11,236,236us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (3,272,808)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
$ 42,502us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
$ (1,698,671)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 6,346,524us-gaap_StockholdersEquity
Shares, Outstanding, Beginning Balance at Dec. 31, 2013 3,926,491us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  1,204,252us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     
Share-based compensation - options   33,390us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
      33,390us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Issuance of common stock from treasury, shares     (26,100)us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     
Issuance of common stock from treasury   43,631us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
57,061us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
    100,692us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
Exercise of warrants from treasury   23,436hrt_ExerciseOfWarrantsFromTreasuryValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
81,864hrt_ExerciseOfWarrantsFromTreasuryValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
    105,300hrt_ExerciseOfWarrantsFromTreasuryValue
Exercise of warrants from treasury, shares     (30,000)hrt_ExerciseOfWarrantsFromTreasuryShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     
Net income (loss)         659,209us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
659,209us-gaap_NetIncomeLoss
Stockholders' Equity Attributable to Parent, Ending Balance at Dec. 31, 2014 39,265us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
11,336,693us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(3,133,883)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
42,502us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
(1,039,462)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
7,245,115us-gaap_StockholdersEquity
Shares, Outstanding, Ending Balance at Dec. 31, 2014 3,926,491us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  1,148,152us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     
Accumulated comprehensive income from unrealized gains and losses in currency translation   (51)hrt_AccumulatedComprehensiveIncomeFromUnrealizedGainsAndLossesInCurrencyTranslation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
  (42,502)hrt_AccumulatedComprehensiveIncomeFromUnrealizedGainsAndLossesInCurrencyTranslation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
  (42,553)hrt_AccumulatedComprehensiveIncomeFromUnrealizedGainsAndLossesInCurrencyTranslation
Share-based compensation - options   29,178us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
      29,178us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Issuance of common stock from treasury, shares     (23,300)us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     
Issuance of common stock from treasury   15,716us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
64,387us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
    80,103us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued
Net income (loss)         (429,166)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(429,166)us-gaap_NetIncomeLoss
Stockholders' Equity Attributable to Parent, Ending Balance at Dec. 31, 2015 $ 39,265us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 11,381,536us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (3,069,496)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
  $ (1,468,628)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 6,882,677us-gaap_StockholdersEquity
Shares, Outstanding, Ending Balance at Dec. 31, 2015 3,926,491us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  1,124,852us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
     

Consolidated Statements of Cash Flows
v5.17.1.24
Consolidated Statements of Cash Flows (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Cash flows from operating activities:    
Net income (loss) $ (429,166)us-gaap_NetIncomeLoss $ 659,209us-gaap_NetIncomeLoss
Loss (income) from discontinued operations (362,610)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity 1,779us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
(Gain) loss on sale of property, plant and equipment 13,320us-gaap_GainLossOnSaleOfPropertyPlantEquipment (21,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Depreciation and amortization 1,464,588us-gaap_DepreciationDepletionAndAmortization 1,475,806us-gaap_DepreciationDepletionAndAmortization
Impairment of intangibles 118,318us-gaap_ImpairmentOfIntangibleAssetsFinitelived 63,087us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Non-cash interest expense 27,683hrt_NonCashInterestExpense 27,683hrt_NonCashInterestExpense
Change in allowance for doubtful accounts 15,000us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease 5,000us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
Share-based compensation expense 29,178us-gaap_ShareBasedCompensation 33,390us-gaap_ShareBasedCompensation
Changes in operating assets and liabilities:    
Accounts receivable 723,394us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables 262,106us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables
Inventories 395,529us-gaap_IncreaseDecreaseInInventories (178,950)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets (94,547)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets (6,385)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Other non-current assets 301,522us-gaap_IncreaseDecreaseInOtherNoncurrentAssets (384,762)us-gaap_IncreaseDecreaseInOtherNoncurrentAssets
Accounts payable (303,768)us-gaap_IncreaseDecreaseInAccountsPayable (298,875)us-gaap_IncreaseDecreaseInAccountsPayable
Accrued expenses and other current liabilities (90,426)us-gaap_IncreaseDecreaseInAccruedLiabilities (294,351)us-gaap_IncreaseDecreaseInAccruedLiabilities
Other non-current liabilities (338,249)us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities 438,114us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities
Net cash provided by (used in) operating activities of continuing operations 1,469,766us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations 1,781,851us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Net cash provided by (used in) operating activites of discontinued operations 0us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations (1,509)us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
Net cash provided by (used in) operating activities 1,469,766us-gaap_NetCashProvidedByUsedInOperatingActivities 1,780,342us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows from investing activities:    
Purchases of property, plant and equipment (1,182,541)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (1,514,678)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from sale of property, plant and equipment 35,700us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 24,500us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Cash paid for patents and trademarks (6,176)hrt_CashPaidForPatentsAndTrademarks (16,566)hrt_CashPaidForPatentsAndTrademarks
Net cash provided by (used in) investing activities from continuing operations (1,153,017)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (1,506,744)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Net cash provided by (used in) investing activities from discontinued operations 0us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations 0us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
Net cash provided by (used in) investing activities (1,153,017)us-gaap_NetCashProvidedByUsedInInvestingActivities (1,506,744)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities:    
Proceeds from (payments on) revolving line of credit, net (560,000)hrt_ProceedsFromPaymentsOnRevolvingLineOfCreditNet (703,000)hrt_ProceedsFromPaymentsOnRevolvingLineOfCreditNet
Proceeds from equipment line of credit 752,635hrt_ProceedsFromEquipmentLineOfCredit 116,905hrt_ProceedsFromEquipmentLineOfCredit
Payments on term notes payable (526,594)us-gaap_RepaymentsOfMediumTermNotes (435,372)us-gaap_RepaymentsOfMediumTermNotes
Proceeds from warrant exercises 0us-gaap_ProceedsFromWarrantExercises 105,300us-gaap_ProceedsFromWarrantExercises
Proceeds from stock option exercises 80,103us-gaap_ProceedsFromStockOptionsExercised 100,692us-gaap_ProceedsFromStockOptionsExercised
Net cash provided by (used in) financing activities from continuing operations (253,856)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations (815,475)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Net cash provided by (used in) financing activities from discontinued operations 0us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations 0us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations
Net cash provided by (used in) financing activities (253,856)us-gaap_NetCashProvidedByUsedInFinancingActivities (815,475)us-gaap_NetCashProvidedByUsedInFinancingActivities
Net increase (decrease) in cash and cash equivalents 62,893us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (541,877)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents, beginning of period 209,398us-gaap_Cash 751,275us-gaap_Cash
Cash and cash equivalents, end of period 272,291us-gaap_Cash 209,398us-gaap_Cash
Less: cash and cash equivalents of discontinued operations at end of period 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
Cash and cash equivalents of continuing operations at end of period 272,291us-gaap_CashAndCashEquivalentsAtCarryingValue 209,398us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental Cash Flow Information (unaudited)    
Cash paid for interest 222,237us-gaap_InterestPaid 228,255us-gaap_InterestPaid
Cash received from tax refunds 0us-gaap_IncomeTaxRefundsDiscontinuedOperations 132us-gaap_IncomeTaxRefundsDiscontinuedOperations
Non-cash activities:    
Reclassified assets held for sale 665,000hrt_ReclassifiedAssetsHeldForSale  
Equipment line of credit converted to term notes payable 415,785hrt_EquipmentLineOfCreditConvertedIntoNewDebt 740,999hrt_EquipmentLineOfCreditConvertedIntoNewDebt
Reduction of restricted cash offset by performance guarantee $ 0hrt_ReductionOfRestrictedCashOffsetByPerformanceGuarantee $ 975,430hrt_ReductionOfRestrictedCashOffsetByPerformanceGuarantee

Consolidated Statements of Cash Flows (Additional Information)
v5.17.1.24
Consolidated Statements of Cash Flows (Additional Information) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Consolidated Statements of Cash Flows [Abstract]      
Cash and cash equivalents, end of period $ 272,291us-gaap_Cash $ 209,398us-gaap_Cash $ 751,275us-gaap_Cash
Less: cash and cash equivalents of discontinued operations at end of period 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents  
Cash and cash equivalents of continuing operations at end of period $ 272,291us-gaap_CashAndCashEquivalentsAtCarryingValue $ 209,398us-gaap_CashAndCashEquivalentsAtCarryingValue  

Description of Business
v5.17.1.24
Description of Business
12 Months Ended
Dec. 31, 2015
Description of Business [Abstract]  
Description of Business

1.  Description of Business

 

Arrhythmia Research Technology®, Inc., (“ART”), through its wholly-owned subsidiary, Micron Products®, Inc. ("Micron", and collectively with ART, the "Company") is a diversified contract manufacturing organization (“CMO”)  that produces highly-engineered, innovative components requiring precision machining and injection molding. The Company also manufactures components, devices and equipment for military, law enforcement, automotive and consumer products applications. The Company's capabilities include molding and silver plating of medical sensors, thermoplastic injection molding, customer-specific quick-turn orthopedic implant component manufacturing and custom products for military and law enforcement applications. The Company competes globally, with nearly forty percent of its revenue derived from exports.

 

ART was founded in 1986, completed an initial public offering in 1988 and shares have been listed on the NYSE MKT since 1992. Its stock trades under the symbol HRT. The Company has grown organically and through acquisitions. Today, the Company has diversified manufacturing capabilities with the capacity to participate in full product life-cycle activities from early stage development and engineering and prototyping to full scale manufacturing as well as packaging and product fulfillment services.

 

The Company's subsidiary, RMDDxUSA Corp. and its Prince Edward Island subsidiary RMDDx Corporation (collectively "WirelessDx"), discontinued operations in 2012, filed for relief under Chapter 7 (Liquidation) of the United States Bankruptcy Code in May 2014 and in March 2015, the Chapter 7 Order was formally discharged and the case was closed (see Note 12).

 

Operating matters and liquidity

 

The revolver under the Company's credit facility has a maturity date of June 2017 (see Note 5). At December 31, 2015, the outstanding balance on the revolver was $1,511,495.  The Company believes that cash flows from its operations, together with its existing working capital, the revolver and other resources, will be sufficient to fund operations at current levels and repay debt obligations over the next twelve months and beyond; however, there can be no assurance that the Company will be able to do so.

 


Description of Business (Details)
v5.17.1.24
Description of Business (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Line of Credit Facility [Line Items]    
Percent of revenue derived from exports 40.00%hrt_PercentOfRevenueDerivedFromExports  
Revolving Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Outstanding balance, line of credit 1,511,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
$ 2,071,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember

Accounting Policies
v5.17.1.24
Accounting Policies
12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Accounting Policies

2.  Accounting Policies

 

Principles of consolidation

 

The consolidated financial statements (the "financial statements") include the accounts of ART, Micron and WirelessDx. WirelessDx is presented herein as discontinued operations. All intercompany balances and transactions have been eliminated in consolidation.

 

Use of estimates

 

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods.  Actual results could differ from those estimates.

 

Revenue Recognition

 

Product revenue is recorded when all criteria for revenue recognition have been satisfied, which is generally when goods are shipped to the Company's customers. Product revenue is recognized in the period when persuasive evidence of an arrangement with a customer exists, the products are shipped and title has transferred to the customer, the price is fixed or determined and collection is probable.

 

The Company enters into arrangements containing multiple elements which may include a combination of the sale of molds, tooling, engineering and validation services ("tooling") and production units. The Company has determined that certain tooling arrangements, and the related production units, represent one unit of accounting, based on an assessment of the respective standalone value. When the Company determines that an arrangement represents one unit of accounting, the revenue is deferred over the estimated product life-cycle, based upon historical knowledge of the customer, which is generally three years. The Company carries the sales and tooling costs, associated with the related arrangement, as deferred revenue and other current and non-current assets, respectively, on the Company's balance sheet. As the deferred revenue is amortized to sales, the associated prepaid tooling costs are amortized to cost of sales.

 

The Company cannot effectively predict short-term or long-term production volume in a consistent and meaningful manner due to the nature of these molds and associated products. Therefore, the Company is unable to account for the transactions under the Units of Production method and management has determined the most appropriate amortization method to be the Straight-Line method.

 

The Company may from time to time, at the customer's request, enter into a bill and hold arrangement. The Company evaluates the nature of the arrangement including, but not limited to (i) the customer's business purpose, (ii) the transfer of risk of ownership to the customer and (iii) the segregation of inventory, along with other elements in accordance with relevant accounting guidance to determine the appropriate method of revenue recognition for each arrangement.

 

Revenue for software license sales is recognized when licenses are sold as the revenue cycle is completed with no warranty, returns or technical support to customers. Total revenue from software sales was immaterial in relation to consolidated revenues.

 

Fair value of financial instruments

 

The carrying amount reported in the balance sheets for cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to the immediate or short-term nature of such instruments. The carrying value of debt approximates fair value since it provides for market terms and interest rates.

 

Concentration of credit risk

 

Financial instruments which potentially expose the Company to concentrations of credit risk consist primarily of accounts receivable and cash and cash equivalents. It is the Company’s policy to place its cash in high quality financial institutions. The Company does not believe significant credit risk exists above federally insured limits with respect to these institutions.

 

Accounts receivable are customer obligations due under normal trade terms. A large portion of the Company's products are sold to large diversified medical, military and law enforcement product manufacturers. The Company does not generally require collateral for its sales; however, the Company believes that its terms of sale provide adequate protection against credit risk.    While the Company has a strong record of collecting on its receivables, the Company maintains Accounts Receivables insurance in order to mitigate concentration of credit risk where our top five customers in revenue constituted 51% of the AR at December 31, 2015 as compared to 55% at December 31, 2014.

 

During the year ended December 31, 2015, the Company had net sales to two customers constituting 16% and 13% of total 2015 net sales. Accounts receivable from these two customers at December 31, 2015 was 9% each of the total accounts receivable balance at year end. During the year ended December 31, 2014, the Company had net sales to four customers constituting 15%,  13%,  12% and 10%, respectively, of total 2014 net sales. Accounts receivable from the four customers at December 31, 2014 was 11%,  9%,  15% and 14%, respectively, of the total accounts receivable balance at year end.

 

Cash and cash equivalents

 

Cash and cash equivalents consist of cash on hand and on deposit in high quality financial institutions with maturities of three months or less at the time of purchase.

 

Accounts Receivable and Allowance for Doubtful Accounts

 

Accounts receivable represent amounts invoiced by the Company. Management maintains an allowance for doubtful accounts based on information obtained regarding individual accounts and historical experience. Amounts deemed uncollectible are written off against the allowance for doubtful accounts.  Bad debts have not had a significant impact on the Company’s financial position, results of operations and cash flows. 

 

Inventories

 

The Company values its inventory at the lower of average cost, first-in-first-out (FIFO) or net realizable value. The Company reviews its inventory for quantities in excess of production requirements, obsolescence and for compliance with internal quality specifications. Any adjustments to inventory would be equal to the difference between the cost of inventory and the estimated net market value based upon assumptions about future demand, market conditions and expected cost to distribute those products to market. The Company records adjustments to account for potential scrap during normal manufacturing operations or potential obsolesce for slow moving inventory.

 

Property, plant and equipment

 

Property, plant and equipment are recorded at cost and include expenditures which substantially extend their useful lives. Depreciation on property, plant and equipment is calculated using the straight-line method over the estimated useful lives of the assets. Expenditures for maintenance and repairs are charged to earnings as incurred. When equipment is retired or sold, the resulting gain or loss is reflected in earnings.

 

       Assets held for sale

 

Property classified as held for sale is measured at the lower of its carrying value or fair value less cost to sell.  Gains or losses are recognized for any subsequent changes to fair value less cost to sell; however, gains that may be recognized are limited by cumulative losses previously recognized.  Property held for sale is not depreciated.

 

Property is classified as held for sale in the period in which management with the appropriate authority commits to a plan to sell the asset; the asset is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such assets; an active program to locate a buyer and other actions required to complete the plan of sale have been initiated; the sale of the property or asset within one year is probable and will qualify for accounting purposes as a sale; the asset is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan of sale indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn.  Long-lived assets classified as held for sale are presented separately in the statement of financial position of the current period. 

 

Fair value hierarchy

 

The Company groups its assets and liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. 

 

Level 1 – Valuation is based on quoted prices in active markets for identical assets or liabilities.  Valuations are obtained from readily available pricing sources.

 

Level 2 – Valuation is based on observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.  

 

Level 3 – Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.  Level 3 assets and liabilities include financial instruments whose value is determined using unobservable inputs to pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.  

 

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.  The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the investment. 

 

The Company recognizes transfers between levels at the end of the reporting period.  

 

At December 31, 2015, assets held for sale is the only item in the financial statements reflected at fair value.    Assets held for sale are considered level 3.  The fair value of assets held for sale was determined using the sales price per a purchase and sale agreement less the estimated cost to sell.

 

Long-lived and intangible assets

 

The Company assesses the impairment of long-lived assets and intangible assets with finite lives annually or whenever events or changes in circumstances indicate that the carrying value may not be fully recoverable. Based upon the annual review, the Company recorded impairment charges of $118,318 and $63,087 in 2015 and 2014, respectively.

   

In 2015, the Company reviewed unamortized costs for patents pending.  As a result of this review, the Company determined that the patents pending related to the Triggering Recharging and Wireless Transmission of Remote Patient Monitoring Device, as well as the Seed-Beat Selection Method for Signal-Averaged Electrocardiography were no longer patentable and recorded an impairment charge of $103,287 for the full costs of these patents pending.  Additionally, after a review of trade names, the Company determined that the Leominster Tool & Die no longer provided any future economic benefit and recorded an impairment charge of $15,031 for the remaining unamortized balance of the trade names. 

 

In 2014, the Company reviewed unamortized costs for patents pending.  As a result of this review, the Company determined that the patent pending related to the Ambulatory Physiological Monitoring with Remote Analysis were no longer patentable and recorded an impairment charge of $56,237 for the full costs of these patents pending. Additionally, the Company recorded an impairment charge of $6,850 related to its tradename PureTrace, therefore, the total impairment was $63,087.

 

 

Intangible assets consist of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

December 31, 2015

 

December 31, 2014

 

 

Useful Life

 

 

 

 

Accumulated

 

 

 

 

 

 

 

Accumulated

 

 

 

 

 

(in years)

 

Gross

 

Amortization

 

Net

 

Gross

 

Amortization

 

Net

Patents and trademarks

 

10 

 

$

26,290 

 

 

7,981 

 

$

18,309 

 

$

414,436 

 

$

394,371 

 

$

20,065 

Patents and trademarks pending

 

 —

 

 

336 

 

 

 

 

 

336 

 

 

97,447 

 

 

 —

 

 

97,447 

Trade names

 

 —

 

 

 

 

 

 

 

 

 —

 

 

33,250 

 

 

16,740 

 

 

16,510 

Total intangible assets

 

 

 

$

26,626 

 

$

7,981 

 

$

18,645 

 

$

545,133 

 

$

411,111 

 

$

134,022 

 

Amortization expense related to intangible assets, excluding the above noted impairment charge, was $3,235 and $3,974 in 2015 and 2014, respectively. Estimated future annual amortization expense for currently amortizing intangible assets is expected to approximate $1,756.

 

Income taxes

 

The Company recognizes deferred tax liabilities and assets for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based on the difference between the financial statement and tax bases of assets and liabilities using tax rates in effect for the year in which the differences are expected to reverse.  

 

The Company follows the provisions of FASB ASC 740, “Accounting for Uncertainty in Income Taxes—An Interpretation of FASB No. 109.” FASB ASC 740 provides detailed guidance for the financial statement recognition, measurement and disclosure of uncertain tax positions recognized in the financial statements in accordance with SFAS No. 109. Tax positions must meet a “more-likely-than-not” recognition threshold at the effective date to be recognized upon the adoption of FASB ASC 740 and in subsequent periods. No interest and penalties related to uncertain tax positions were accrued at December 31, 2015.    The Company’s primary operations are located in the US. Tax years ended December 31, 2012 or later remain subject to examination by the IRS and state taxing authorities.

 

Share-based compensation

 

Share-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as an expense over the employee’s requisite service period (generally the vesting period of the share-based grant).

 

Comprehensive income

 

In 2015 and 2014, the Company has accumulated other comprehensive income of $0 and $42,502, respectively.  In 2015, the change in accumulated comprehensive income was a result of the 2015 bankruptcy filing of RMDDxUSA Corp.

 

Earnings per share data

 

Basic earnings (loss) per share is computed by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding.  The computation of diluted earnings (loss) per share is similar to the computation of basic earnings (loss) per share except that the denominator is increased to include the average number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued.  In addition, the numerator is adjusted for any changes in net income (loss) that would result from the assumed conversions of those potential shares.

 

Research and development

 

Research and development expenses include costs directly attributable to conducting research and development programs primarily related to the development of a unique process to improve silver coating during the manufacturing processes, including the design and testing of specific process improvements for certain medical device components. Such costs include salaries, payroll taxes, employee benefit costs, materials, supplies, depreciation on research equipment, and services provided by outside contractors.  All costs associated with research and development programs are expensed as incurred.

 

Recently Issued Accounting Pronouncements

 

In the normal course of business, management evaluates all new accounting pronouncements issued by the FASB, SEC, Emerging Issues Task Force (“EITF”), or other authoritative accounting bodies to determine the potential impact they may have on the Company’s Consolidated Financial Statements. Based upon this review, except as noted below, management does not expect any of the recently issued accounting pronouncements, which have not already been adopted, to have a material impact on the Company’s Consolidated Financial Statements.

 

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which requires companies to recognize all leases as assets and liabilities on the consolidated balance sheet. This ASU retains a distinction between finance leases and operating leases, and the classification criteria for distinguishing between finance leases and operating leases are substantially similar to the classification criteria for distinguishing between capital leases and operating leases in the current accounting literature. The result of retaining a distinction between finance leases and operating leases is that under the lessee accounting model in Topic 842, the effect of leases in a consolidated statement of comprehensive income and a consolidated statement of cash flows is largely unchanged from previous GAAP.  The amendments in this ASU are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Earlier application is permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its Consolidated Financial Statements.

 

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory,” which simplifies the subsequent measurement of inventory by requiring inventory to be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This ASU is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. The Company is currently assessing the impact of adopting this ASU on its Consolidated Financial Statements.

 

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers.” The core principle behind ASU No. 2014-09 is that an entity should recognize revenue in an amount that reflects the consideration to which the entity expects to be entitled in exchange for delivering goods and services. This model involves a five-step process that includes identifying the contract with the customer, identifying the performance obligations in the contract, determining the transaction price, allocating the transaction price to the performance obligations in the contract and recognizing revenue when the entity satisfies the performance obligations. This ASU allows two methods of adoption; a full retrospective approach where historical financial information is presented in accordance with the new standard, and a modified retrospective approach where this ASU is applied to the most current period presented in the financial statements. In August 2015, the FASB issued ASU No 2015-14 “Revenue from Contracts with Customers: Deferral of the Effective Date,” which deferred the effective date of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, with earlier application permitted as of annual reporting periods beginning after December 15, 2016. The Company is currently assessing the financial impact of adopting ASU 2014-09 and the methods of adoption; however, given the scope of the new standard, the Company is currently unable to provide a reasonable estimate regarding the financial impact or which method of adoption will be elected.

 

In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity,” which amends the definition of a discontinued operation and requires entities to provide additional disclosures about disposal transactions that do not meet the discontinued operations criteria. The revised ASU changes how entities identify and disclose information about disposal transactions under U.S. GAAP. This ASU is effective prospectively for all disposals (except disposals classified as held for sale before the adoption date) or components initially classified as held for sale in periods beginning on or after December 15, 2014. This ASU is applicable for disposal transactions, if any, that the Company enters into after January 2, 2015. This ASU did not materially impact the Company’s Consolidated Financial Statements.

 

Reclassification of prior period balances

 

Amounts in prior year financial statements are reclassified when necessary to conform to the current year presentation.

   

 

 


Accounting Policies (Policies)
v5.17.1.24
Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Principles of consolidation

Principles of consolidation

 

The consolidated financial statements (the "financial statements") include the accounts of ART, Micron and WirelessDx. WirelessDx is presented herein as discontinued operations. All intercompany balances and transactions have been eliminated in consolidation.

Use of estimates

Use of estimates

 

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods.  Actual results could differ from those estimates.

Revenue Recognition

Revenue Recognition

 

Product revenue is recorded when all criteria for revenue recognition have been satisfied, which is generally when goods are shipped to the Company's customers. Product revenue is recognized in the period when persuasive evidence of an arrangement with a customer exists, the products are shipped and title has transferred to the customer, the price is fixed or determined and collection is probable.

 

The Company enters into arrangements containing multiple elements which may include a combination of the sale of molds, tooling, engineering and validation services ("tooling") and production units. The Company has determined that certain tooling arrangements, and the related production units, represent one unit of accounting, based on an assessment of the respective standalone value. When the Company determines that an arrangement represents one unit of accounting, the revenue is deferred over the estimated product life-cycle, based upon historical knowledge of the customer, which is generally three years. The Company carries the sales and tooling costs, associated with the related arrangement, as deferred revenue and other current and non-current assets, respectively, on the Company's balance sheet. As the deferred revenue is amortized to sales, the associated prepaid tooling costs are amortized to cost of sales.

 

The Company cannot effectively predict short-term or long-term production volume in a consistent and meaningful manner due to the nature of these molds and associated products. Therefore, the Company is unable to account for the transactions under the Units of Production method and management has determined the most appropriate amortization method to be the Straight-Line method.

 

The Company may from time to time, at the customer's request, enter into a bill and hold arrangement. The Company evaluates the nature of the arrangement including, but not limited to (i) the customer's business purpose, (ii) the transfer of risk of ownership to the customer and (iii) the segregation of inventory, along with other elements in accordance with relevant accounting guidance to determine the appropriate method of revenue recognition for each arrangement.

 

Revenue for software license sales is recognized when licenses are sold as the revenue cycle is completed with no warranty, returns or technical support to customers. Total revenue from software sales was immaterial in relation to consolidated revenues.

Fair value of financial instruments

Fair value of financial instruments

 

The carrying amount reported in the balance sheets for cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to the immediate or short-term nature of such instruments. The carrying value of debt approximates fair value since it provides for market terms and interest rates.

Concentration of credit risk

Concentration of credit risk

 

Financial instruments which potentially expose the Company to concentrations of credit risk consist primarily of accounts receivable and cash and cash equivalents. It is the Company’s policy to place its cash in high quality financial institutions. The Company does not believe significant credit risk exists above federally insured limits with respect to these institutions.

 

Accounts receivable are customer obligations due under normal trade terms. A large portion of the Company's products are sold to large diversified medical, military and law enforcement product manufacturers. The Company does not generally require collateral for its sales; however, the Company believes that its terms of sale provide adequate protection against credit risk.    While the Company has a strong record of collecting on its receivables, the Company maintains Accounts Receivables insurance in order to mitigate concentration of credit risk where our top five customers in revenue constituted 51% of the AR at December 31, 2015 as compared to 55% at December 31, 2014.

 

During the year ended December 31, 2015, the Company had net sales to two customers constituting 16% and 13% of total 2015 net sales. Accounts receivable from these two customers at December 31, 2015 was 9% each of the total accounts receivable balance at year end. During the year ended December 31, 2014, the Company had net sales to four customers constituting 15%,  13%,  12% and 10%, respectively, of total 2014 net sales. Accounts receivable from the four customers at December 31, 2014 was 11%,  9%,  15% and 14%, respectively, of the total accounts receivable balance at year end.

Cash and cash equivalents

Cash and cash equivalents

 

Cash and cash equivalents consist of cash on hand and on deposit in high quality financial institutions with maturities of three months or less at the time of purchase.

Accounts receivable and Allowance for Doubtful Accounts

Accounts Receivable and Allowance for Doubtful Accounts

 

Accounts receivable represent amounts invoiced by the Company. Management maintains an allowance for doubtful accounts based on information obtained regarding individual accounts and historical experience. Amounts deemed uncollectible are written off against the allowance for doubtful accounts.  Bad debts have not had a significant impact on the Company’s financial position, results of operations and cash flows. 

Inventories

Inventories

 

The Company values its inventory at the lower of average cost, first-in-first-out (FIFO) or net realizable value. The Company reviews its inventory for quantities in excess of production requirements, obsolescence and for compliance with internal quality specifications. Any adjustments to inventory would be equal to the difference between the cost of inventory and the estimated net market value based upon assumptions about future demand, market conditions and expected cost to distribute those products to market. The Company records adjustments to account for potential scrap during normal manufacturing operations or potential obsolesce for slow moving inventory.

Property, plant and equipment

Property, plant and equipment

 

Property, plant and equipment are recorded at cost and include expenditures which substantially extend their useful lives. Depreciation on property, plant and equipment is calculated using the straight-line method over the estimated useful lives of the assets. Expenditures for maintenance and repairs are charged to earnings as incurred. When equipment is retired or sold, the resulting gain or loss is reflected in earnings.

Assets held for sale

Assets held for sale

 

Property classified as held for sale is measured at the lower of its carrying value or fair value less cost to sell.  Gains or losses are recognized for any subsequent changes to fair value less cost to sell; however, gains that may be recognized are limited by cumulative losses previously recognized.  Property held for sale is not depreciated.

 

Property is classified as held for sale in the period in which management with the appropriate authority commits to a plan to sell the asset; the asset is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such assets; an active program to locate a buyer and other actions required to complete the plan of sale have been initiated; the sale of the property or asset within one year is probable and will qualify for accounting purposes as a sale; the asset is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan of sale indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn.  Long-lived assets classified as held for sale are presented separately in the statement of financial position of the current period. 

Fair value heirarchy

Fair value hierarchy

 

The Company groups its assets and liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. 

 

Level 1 – Valuation is based on quoted prices in active markets for identical assets or liabilities.  Valuations are obtained from readily available pricing sources.

 

Level 2 – Valuation is based on observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.  

 

Level 3 – Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.  Level 3 assets and liabilities include financial instruments whose value is determined using unobservable inputs to pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.  

 

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.  The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the investment. 

 

The Company recognizes transfers between levels at the end of the reporting period.  

 

At December 31, 2015, assets held for sale is the only item in the financial statements reflected at fair value.    Assets held for sale are considered level 3.  The fair value of assets held for sale was determined using the sales price per a purchase and sale agreement less the estimated cost to sell.

Long-lived and intangible assets

Long-lived and intangible assets

 

The Company assesses the impairment of long-lived assets and intangible assets with finite lives annually or whenever events or changes in circumstances indicate that the carrying value may not be fully recoverable. Based upon the annual review, the Company recorded impairment charges of $118,318 and $63,087 in 2015 and 2014, respectively.

   

In 2015, the Company reviewed unamortized costs for patents pending.  As a result of this review, the Company determined that the patents pending related to the Triggering Recharging and Wireless Transmission of Remote Patient Monitoring Device, as well as the Seed-Beat Selection Method for Signal-Averaged Electrocardiography were no longer patentable and recorded an impairment charge of $103,287 for the full costs of these patents pending.  Additionally, after a review of trade names, the Company determined that the Leominster Tool & Die no longer provided any future economic benefit and recorded an impairment charge of $15,031 for the remaining unamortized balance of the trade names. 

 

In 2014, the Company reviewed unamortized costs for patents pending.  As a result of this review, the Company determined that the patent pending related to the Ambulatory Physiological Monitoring with Remote Analysis were no longer patentable and recorded an impairment charge of $56,237 for the full costs of these patents pending. Additionally, the Company recorded an impairment charge of $6,850 related to its tradename PureTrace, therefore, the total impairment was $63,087.

 

 

Intangible assets consist of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

December 31, 2015

 

December 31, 2014

 

 

Useful Life

 

 

 

 

Accumulated

 

 

 

 

 

 

 

Accumulated

 

 

 

 

 

(in years)

 

Gross

 

Amortization

 

Net

 

Gross

 

Amortization

 

Net

Patents and trademarks

 

10 

 

$

26,290 

 

 

7,981 

 

$

18,309 

 

$

414,436 

 

$

394,371 

 

$

20,065 

Patents and trademarks pending

 

 —

 

 

336 

 

 

 

 

 

336 

 

 

97,447 

 

 

 —

 

 

97,447 

Trade names

 

 —

 

 

 

 

 

 

 

 

 —

 

 

33,250 

 

 

16,740 

 

 

16,510 

Total intangible assets

 

 

 

$

26,626 

 

$

7,981 

 

$

18,645 

 

$

545,133 

 

$

411,111 

 

$

134,022 

 

Amortization expense related to intangible assets, excluding the above noted impairment charge, was $3,235 and $3,974 in 2015 and 2014, respectively. Estimated future annual amortization expense for currently amortizing intangible assets is expected to approximate $1,756.

Income taxes

Income taxes

 

The Company recognizes deferred tax liabilities and assets for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based on the difference between the financial statement and tax bases of assets and liabilities using tax rates in effect for the year in which the differences are expected to reverse.  

 

The Company follows the provisions of FASB ASC 740, “Accounting for Uncertainty in Income Taxes—An Interpretation of FASB No. 109.” FASB ASC 740 provides detailed guidance for the financial statement recognition, measurement and disclosure of uncertain tax positions recognized in the financial statements in accordance with SFAS No. 109. Tax positions must meet a “more-likely-than-not” recognition threshold at the effective date to be recognized upon the adoption of FASB ASC 740 and in subsequent periods. No interest and penalties related to uncertain tax positions were accrued at December 31, 2015.    The Company’s primary operations are located in the US. Tax years ended December 31, 2012 or later remain subject to examination by the IRS and state taxing authorities.

Share-based compensation

Share-based compensation

 

Share-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as an expense over the employee’s requisite service period (generally the vesting period of the share-based grant).

Comprehensive income

Comprehensive income

 

In 2015 and 2014, the Company has accumulated other comprehensive income of $0 and $42,502, respectively.  In 2015, the change in accumulated comprehensive income was a result of the 2015 bankruptcy filing of RMDDxUSA Corp.

Earnings per share data

Earnings per share data

 

Basic earnings (loss) per share is computed by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding.  The computation of diluted earnings (loss) per share is similar to the computation of basic earnings (loss) per share except that the denominator is increased to include the average number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued.  In addition, the numerator is adjusted for any changes in net income (loss) that would result from the assumed conversions of those potential shares.

Research and development

Research and development

 

Research and development expenses include costs directly attributable to conducting research and development programs primarily related to the development of a unique process to improve silver coating during the manufacturing processes, including the design and testing of specific process improvements for certain medical device components. Such costs include salaries, payroll taxes, employee benefit costs, materials, supplies, depreciation on research equipment, and services provided by outside contractors.  All costs associated with research and development programs are expensed as incurred.

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

 

In the normal course of business, management evaluates all new accounting pronouncements issued by the FASB, SEC, Emerging Issues Task Force (“EITF”), or other authoritative accounting bodies to determine the potential impact they may have on the Company’s Consolidated Financial Statements. Based upon this review, except as noted below, management does not expect any of the recently issued accounting pronouncements, which have not already been adopted, to have a material impact on the Company’s Consolidated Financial Statements.

 

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which requires companies to recognize all leases as assets and liabilities on the consolidated balance sheet. This ASU retains a distinction between finance leases and operating leases, and the classification criteria for distinguishing between finance leases and operating leases are substantially similar to the classification criteria for distinguishing between capital leases and operating leases in the current accounting literature. The result of retaining a distinction between finance leases and operating leases is that under the lessee accounting model in Topic 842, the effect of leases in a consolidated statement of comprehensive income and a consolidated statement of cash flows is largely unchanged from previous GAAP.  The amendments in this ASU are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Earlier application is permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its Consolidated Financial Statements.

 

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory,” which simplifies the subsequent measurement of inventory by requiring inventory to be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This ASU is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. The Company is currently assessing the impact of adopting this ASU on its Consolidated Financial Statements.

 

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers.” The core principle behind ASU No. 2014-09 is that an entity should recognize revenue in an amount that reflects the consideration to which the entity expects to be entitled in exchange for delivering goods and services. This model involves a five-step process that includes identifying the contract with the customer, identifying the performance obligations in the contract, determining the transaction price, allocating the transaction price to the performance obligations in the contract and recognizing revenue when the entity satisfies the performance obligations. This ASU allows two methods of adoption; a full retrospective approach where historical financial information is presented in accordance with the new standard, and a modified retrospective approach where this ASU is applied to the most current period presented in the financial statements. In August 2015, the FASB issued ASU No 2015-14 “Revenue from Contracts with Customers: Deferral of the Effective Date,” which deferred the effective date of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, with earlier application permitted as of annual reporting periods beginning after December 15, 2016. The Company is currently assessing the financial impact of adopting ASU 2014-09 and the methods of adoption; however, given the scope of the new standard, the Company is currently unable to provide a reasonable estimate regarding the financial impact or which method of adoption will be elected.

 

In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity,” which amends the definition of a discontinued operation and requires entities to provide additional disclosures about disposal transactions that do not meet the discontinued operations criteria. The revised ASU changes how entities identify and disclose information about disposal transactions under U.S. GAAP. This ASU is effective prospectively for all disposals (except disposals classified as held for sale before the adoption date) or components initially classified as held for sale in periods beginning on or after December 15, 2014. This ASU is applicable for disposal transactions, if any, that the Company enters into after January 2, 2015. This ASU did not materially impact the Company’s Consolidated Financial Statements.

Reclassification of prior period balances

Reclassification of prior period balances

 

Amounts in prior year financial statements are reclassified when necessary to conform to the current year presentation.

   

 


Accounting Policies (Tables)
v5.17.1.24
Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Intangibles Assets, Net

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

December 31, 2015

 

December 31, 2014

 

 

Useful Life

 

 

 

 

Accumulated

 

 

 

 

 

 

 

Accumulated

 

 

 

 

 

(in years)

 

Gross

 

Amortization

 

Net

 

Gross

 

Amortization

 

Net

Patents and trademarks

 

10 

 

$

26,290 

 

 

7,981 

 

$

18,309 

 

$

414,436 

 

$

394,371 

 

$

20,065 

Patents and trademarks pending

 

 —

 

 

336 

 

 

 

 

 

336 

 

 

97,447 

 

 

 —

 

 

97,447 

Trade names

 

 —

 

 

 

 

 

 

 

 

 —

 

 

33,250 

 

 

16,740 

 

 

16,510 

Total intangible assets

 

 

 

$

26,626 

 

$

7,981 

 

$

18,645 

 

$

545,133 

 

$

411,111 

 

$

134,022 

 


Accounting Policies (Narrative) (Details)
v5.17.1.24
Accounting Policies (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Concentration Risk [Line Items]    
General revenue recognition period 3 years  
Impairment of intangibles $ 118,318us-gaap_ImpairmentOfIntangibleAssetsFinitelived $ 63,087us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Amortization expense 3,235us-gaap_AmortizationOfIntangibleAssets 3,974us-gaap_AmortizationOfIntangibleAssets
Estimated future amortization 1,756hrt_EstimatedFutureAmortization  
Interest or penalties related to unrecognized tax positions 0us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense  
Accumulated other comprehensive income 0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax 42,502us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Sales Revenue, Net [Member]    
Concentration Risk [Line Items]    
Number of customers, concentration of credit risk 2hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
4hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
Sales Revenue, Net [Member] | Customer 1 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage 16.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer1Member
15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer1Member
Sales Revenue, Net [Member] | Customer 2 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage 13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer2Member
13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer2Member
Sales Revenue, Net [Member] | Customer 3 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage   12.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer3Member
Sales Revenue, Net [Member] | Customer 4 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage   10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer4Member
Accounts Receivable [Member]    
Concentration Risk [Line Items]    
Number of customers, concentration of credit risk 5hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
5hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
Concentration of credit risk, percentage 51.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
55.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
Accounts Receivable [Member] | Customer 1 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer1Member
11.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer1Member
Accounts Receivable [Member] | Two Customers [Member]    
Concentration Risk [Line Items]    
Number of customers, concentration of credit risk 2hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_TwoCustomersMember
 
Accounts Receivable [Member] | Customer 2 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage   9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer2Member
Accounts Receivable [Member] | Customer 3 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage   15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer3Member
Accounts Receivable [Member] | Customer 4 [Member]    
Concentration Risk [Line Items]    
Concentration of credit risk, percentage   14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_Customer4Member
Accounts Receivable [Member] | Four Customers [Member]    
Concentration Risk [Line Items]    
Number of customers, concentration of credit risk   4hrt_NumberOfCustomersConcentrationOfCreditRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= hrt_FourCustomersMember
Patents [Member]    
Concentration Risk [Line Items]    
Impairment of intangibles 103,287us-gaap_ImpairmentOfIntangibleAssetsFinitelived
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
56,237us-gaap_ImpairmentOfIntangibleAssetsFinitelived
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
Trade Names [Member]    
Concentration Risk [Line Items]    
Impairment of intangibles $ 15,031us-gaap_ImpairmentOfIntangibleAssetsFinitelived
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
$ 6,850us-gaap_ImpairmentOfIntangibleAssetsFinitelived
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember

Accounting Policies (Intangible Assets) (Details)
v5.17.1.24
Accounting Policies (Intangible Assets) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Gross $ 26,626us-gaap_FiniteLivedIntangibleAssetsGross $ 545,133us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization 7,981us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization 411,111us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net 18,645us-gaap_FiniteLivedIntangibleAssetsNet 134,022us-gaap_FiniteLivedIntangibleAssetsNet
Patents and Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life (in years) 10 years  
Gross 26,290us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
414,436us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
Accumulated Amortization 7,981us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
394,371us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
Net 18,309us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
20,065us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksMember
Patents and Trademarks Pending [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross 336us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksNotYetInServiceMember
97,447us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksNotYetInServiceMember
Net 336us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksNotYetInServiceMember
97,447us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= hrt_PatentsAndTrademarksNotYetInServiceMember
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross   33,250us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
Accumulated Amortization   16,740us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
Net   $ 16,510us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember

Inventories
v5.17.1.24
Inventories
12 Months Ended
Dec. 31, 2015
Inventories [Abstract]  
Inventories

3.  Inventories

 

Inventories consist of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

December 31,

 

 

2015

 

2014

Raw materials

 

$

775,427 

 

$

873,306 

Work-in-process

 

 

265,113 

 

 

370,220 

Finished goods

 

 

1,078,172 

 

 

1,270,715 

Total

 

$

2,118,712 

 

$

2,514,241 

 

The total cost of silver in our inventory as raw materials, in work-in-process or as a plated surface on finished goods had an estimated cost of $313,738 and $439,800 in 2015 and 2014, respectively.

 

 


Inventories (Tables)
v5.17.1.24
Inventories (Tables)
12 Months Ended
Dec. 31, 2015
Inventories [Abstract]  
Inventories, net

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

December 31,

 

 

2015

 

2014

Raw materials

 

$

775,427 

 

$

873,306 

Work-in-process

 

 

265,113 

 

 

370,220 

Finished goods

 

 

1,078,172 

 

 

1,270,715 

Total

 

$

2,118,712 

 

$

2,514,241 

 


Inventories (Details)
v5.17.1.24
Inventories (Details) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Inventories [Abstract]    
Raw materials $ 775,427us-gaap_InventoryRawMaterialsNetOfReserves $ 873,306us-gaap_InventoryRawMaterialsNetOfReserves
Work-in-process 265,113us-gaap_InventoryWorkInProcessNetOfReserves 370,220us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods 1,078,172us-gaap_InventoryFinishedGoodsNetOfReserves 1,270,715us-gaap_InventoryFinishedGoodsNetOfReserves
Total 2,118,712us-gaap_InventoryNet 2,514,241us-gaap_InventoryNet
Silver inventory $ 313,738hrt_SilverInventory $ 439,800hrt_SilverInventory

Property, Plant and Equipment, Net
v5.17.1.24
Property, Plant and Equipment, Net
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]  
Property, Plant and Equipment, Net

4.  Property, Plant and Equipment, Net

 

Property, plant and equipment, net consist of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Asset Lives

 

December 31,

 

December 31,

 

 

(in years)

 

2015

 

2014

Machinery and equipment

 

3

to

15

 

$

15,168,377 

 

$

14,608,949 

Building and improvements

 

5

to

25

 

 

3,978,387 

 

 

4,360,114 

Vehicles

 

3

to

5

 

 

90,713 

 

 

90,713 

Furniture, fixtures, computers and software

 

3

to

5

 

 

1,437,692 

 

 

1,349,931 

Land

 

 

 

 

 

 

 —

 

 

202,492 

Construction in progress

 

 

 

 

 

 

682,069 

 

 

568,234 

Total property, plant and equipment

 

 

 

 

 

 

21,357,238 

 

 

21,180,433 

Less: accumulated depreciation

 

 

 

 

 

 

(14,731,169)

 

 

(13,561,532)

Property, plant and equipment, net

 

 

 

 

 

$

6,626,069 

 

$

7,618,901 

 

For the year ended December 31, 2015, the Company recorded $1,461,353 of depreciation expense compared to $1,471,832 for the year ended December 31, 2014. There are no commitments related to the completion of construction in process as of December 31, 2015.

 

On December 4, 2015, the Company entered into a Letter of Intent to sell the two unoccupied buildings, with a total of approximately 52,000 square feet, and land, at its Fitchburg, Massachusetts campusSubsequently, on January 13, 2016, the Company entered into a Purchase and Sale Agreement for these buildings.  As these buildings are under agreement to be sold, they have been classified as Assets Held for  Sale at December 31, 2015.  The carrying value of the properties ($665,000) approximated the fair value less the cost to sell.  The Company expects the sale of the properties to be completed by the end of 2016 and does not expected any material impact on the statement of operations.

 

 


Property, Plant and Equipment, Net (Tables)
v5.17.1.24
Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]  
Property, Plant and Equipment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Asset Lives

 

December 31,

 

December 31,

 

 

(in years)

 

2015

 

2014

Machinery and equipment

 

3

to

15

 

$

15,168,377 

 

$

14,608,949 

Building and improvements

 

5

to

25

 

 

3,978,387 

 

 

4,360,114 

Vehicles

 

3

to

5

 

 

90,713 

 

 

90,713 

Furniture, fixtures, computers and software

 

3

to

5

 

 

1,437,692 

 

 

1,349,931 

Land

 

 

 

 

 

 

 —

 

 

202,492 

Construction in progress

 

 

 

 

 

 

682,069 

 

 

568,234 

Total property, plant and equipment

 

 

 

 

 

 

21,357,238 

 

 

21,180,433 

Less: accumulated depreciation

 

 

 

 

 

 

(14,731,169)

 

 

(13,561,532)

Property, plant and equipment, net

 

 

 

 

 

$

6,626,069 

 

$

7,618,901 

 


Property, Plant and Equipment, Net (Narrative) (Details)
v5.17.1.24
Property, Plant and Equipment, Net (Narrative) (Details) (USD $)
12 Months Ended 0 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 04, 2015
item
sqft
Depreciation expense $ 1,461,353us-gaap_Depreciation $ 1,471,832us-gaap_Depreciation  
Fitchburg, Massachusetts [Member]      
Number of unoccupied buildings with letter of intent to sale     2hrt_NumberOfUnoccupiedBuildingsWithLetterOfIntentToSale
/ us-gaap_StatementGeographicalAxis
= hrt_FitchburgMassachusettsMember
Area of unoccupied buildings     52,000hrt_AreaOfUnoccupiedBuildings
/ us-gaap_StatementGeographicalAxis
= hrt_FitchburgMassachusettsMember

Property, Plant and Equipment, Net (Property, Plant and Equipment) (Details)
v5.17.1.24
Property, Plant and Equipment, Net (Property, Plant and Equipment) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment    
Machinery and equipment 15,168,377us-gaap_MachineryAndEquipmentGross $ 14,608,949us-gaap_MachineryAndEquipmentGross
Building and improvements 3,978,387us-gaap_BuildingsAndImprovementsGross 4,360,114us-gaap_BuildingsAndImprovementsGross
Vehicles 90,713hrt_VehiclesGross 90,713hrt_VehiclesGross
Furniture, fixtures, computers and software 1,437,692hrt_FurnitureFixturesComputersAndSoftware 1,349,931hrt_FurnitureFixturesComputersAndSoftware
Land   202,492us-gaap_Land
Construction in progress 682,069us-gaap_ConstructionInProgressGross 568,234us-gaap_ConstructionInProgressGross
Total property, plant and equipment 21,357,238us-gaap_PropertyPlantAndEquipmentGross 21,180,433us-gaap_PropertyPlantAndEquipmentGross
Less: accumulated depreciation (14,731,169)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (13,561,532)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property, plant and equipment, net 6,626,069us-gaap_PropertyPlantAndEquipmentNet $ 7,618,901us-gaap_PropertyPlantAndEquipmentNet
Maximum [Member] | Machinery and Equipment [Member]    
Property, Plant and Equipment    
Useful life 15 years  
Maximum [Member] | Building and Improvements [Member]    
Property, Plant and Equipment    
Useful life 25 years  
Maximum [Member] | Vehicles [Member]    
Property, Plant and Equipment    
Useful life 5 years  
Maximum [Member] | Furniture, Fixtures, Computers and Software [Member]    
Property, Plant and Equipment    
Useful life 5 years  
Minimum [Member] | Machinery and Equipment [Member]    
Property, Plant and Equipment    
Useful life 3 years  
Minimum [Member] | Building and Improvements [Member]    
Property, Plant and Equipment    
Useful life 5 years  
Minimum [Member] | Vehicles [Member]    
Property, Plant and Equipment    
Useful life 3 years  
Minimum [Member] | Furniture, Fixtures, Computers and Software [Member]    
Property, Plant and Equipment    
Useful life 3 years  

Debt
v5.17.1.24
Debt
12 Months Ended
Dec. 31, 2015
Debt [Abstract]  
Debt

5.  Debt

 

The following tables set forth the items which comprise debt for the Company:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

December 31,

 

 

2015

 

2014

Revolving line of credit

 

$

1,511,495 

 

$

2,071,495 

Equipment line of credit

 

$

336,850 

 

$

 —

Subordinated promissory notes

 

$

473,135 

 

$

445,452 

 

 

 

 

 

 

 

Term notes payable:

 

 

 

 

 

 

Commercial term loan

 

$

714,175 

 

$

1,009,977 

Equipment term loans

 

 

879,898 

 

 

640,734 

Equipment notes

 

 

116,214 

 

 

170,385 

Total term notes payable

 

$

1,710,287 

 

$

1,821,096 

 

 

 

 

 

 

 

Total Debt

 

$

4,031,767 

 

$

4,338,043 

 

Bank Debt

 

The revolving line of credit (the "revolver"), commercial term loan, two equipment term loans and an equipment line of credit are all under the terms of a multi-year credit facility with a bank as detailed below.  The debt is secured by substantially all assets of the Company with the exception of real property. 

 

Revolver

 

The revolver provides for borrowings up to 80% of eligible accounts receivable and 50% of eligible raw materials inventory.  The interest rate on the revolver is calculated at the bank's prime rate plus 0.25%  (3.75% at December 31, 2015). The revolver has a maturity date of June 2017. Amounts available to borrow under the revolver are $917,830 at December 31, 2015.  

 

Commercial term loan

 

The commercial term loan has a five year term with a maturity date of March 2018. The interest rate on the loan is a fixed 4.25% per annum and the loan requires monthly payments of principal and interest of approximately $28,000.  

 

Equipment line of credit and equipment term loans

 

On March 29, 2013, the Company entered into an equipment line of credit that allowed for advances of up to $1.0 million and included a one-year draw period during which payments were interest only. The draw period ended March 29, 2014 and the then outstanding balance on the equipment line of credit of $740,999 was converted to an equipment term loan with a five-year term, maturing on of March 29, 2019. The equipment term loan requires monthly payments of approximately $14,000, consisting of principal and interest at a fixed rate of 4.65%

 

On June 26, 2014, the Company entered into an equipment line of credit that allowed for advances of up to $1.0 million and included a one-year draw period during which payments were interest only. The draw period ended June 26, 2015 and the then outstanding balance on the equipment line of credit of $415,785 was converted to an equipment term loan with a five-year term, maturing on of June 26, 2020. The equipment term loan requires monthly payments of approximately $8,000, consisting of principal and interest at a fixed rate of 4.67%.

 

On June 19, 2015, the Company entered into a new equipment line of credit for $1.0 million under the Company's multi-year credit facility. At December 31, 2015, the Company has drawn $336,850 on the new equipment line of credit. The term of this equipment line of credit is six years, maturing on June 19, 2021, inclusive of a maximum one-year draw period. Repayment shall consist of monthly interest only payments, equal to the bank's prime rate plus 0.25% as to each advance commencing on the date of the loan through the earlier of: (i) one year from the date of the loan or (ii) the date upon which the equipment line of credit is fully advanced (the “Conversion Date”). On the Conversion Date, principal and interest payments will be due and payable monthly in an amount sufficient to pay the loan in full based upon an amortization schedule commensurate with the remaining term of the loan.

 

Bank covenants

 

The bank facility contains both financial and non-financial covenants. The financial covenants include maintaining certain debt coverage and leverage ratios. The non-financial covenants relate to various matters including notice prior to executing further borrowings and security interests, mergers or consolidations, acquisitions, guarantees, sales of assets other than in the normal course of business, leasing, changes in ownership and payment of dividends. The Company was in compliance with all bank covenants as of December 31, 2015.

 

Other debt

 

Equipment notes

 

In January 2013, the Company entered into two equipment notes totaling $272,500 with a financing company to acquire production equipment. The notes bear interest at 4.66% and require monthly payments of principal and interest totaling approximately $5,000 over the term of five years.

 

Subordinated promissory notes

 

In December 2013, the Company completed a private offering in which the Company sold an aggregate of $500,000 in subordinated promissory notes. The notes are unsecured and required quarterly interest-only payments at a rate of 10% per annum for the first two years, increasing to 12% per annum in December 2015.  The notes mature in December 2016 at which point the outstanding balance is due in full. The subordinated promissory notes may be prepaid by the Company at any time following the first anniversary thereof without penalty. The notes are subordinated to all indebtedness of the Company pursuant to its March 2013 multi-year bank credit facility.

 

In connection with the subordinated promissory notes, the Company issued warrants to purchase the Company's common stock (see Note 9). In order to account for the subordinated notes payable and warrants, the Company allocated the proceeds between the notes and warrants on a relative fair value basis. As a result, the Company allocated $416,950 to the notes and $83,050 to the warrants. The total discount on the notes is being recognized as non-cash interest expense over the term of the notes. In the years ended December 31, 2015 and 2014 the Company recorded $27,683 per year of non-cash interest expense related to the amortization of the discount. The unamortized discount which is net against the outstanding balance of the subordinated promissory notes is $26,865 at December 31, 2015.

 

Future maturities of debt for the years ending December 31 are as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2016

 

2017

 

2018

 

2019

 

2020

Thereafter

 

Total

Revolver

$

 —

 

$

1,511,495 

 

$

 —

 

$

 —

 

$

 —

 —

 

$

1,511,495 

Subordinated promissory notes

 

500,000 

 

 

 —

 

 

 —

 

 

 —

 

 

 —

 —

 

 

500,000 

Term debt and equipment notes

 

625,353 

 

 

679,808 

 

 

394,214 

 

 

198,707 

 

 

118,175  30,880 

 

 

2,047,137 

Total

$

1,125,353 

 

$

2,191,303 

 

$

394,214 

 

$

198,707 

 

$

118,175  30,880 

 

$

4,058,632 

 


Debt (Tables)
v5.17.1.24
Debt (Tables)
12 Months Ended
Dec. 31, 2015
Debt [Abstract]  
Summary of Debt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

December 31,

 

 

2015

 

2014

Revolving line of credit

 

$

1,511,495 

 

$

2,071,495 

Equipment line of credit

 

$

336,850 

 

$

 —

Subordinated promissory notes

 

$

473,135 

 

$

445,452 

 

 

 

 

 

 

 

Term notes payable:

 

 

 

 

 

 

Commercial term loan

 

$

714,175 

 

$

1,009,977 

Equipment term loans

 

 

879,898 

 

 

640,734 

Equipment notes

 

 

116,214 

 

 

170,385 

Total term notes payable

 

$

1,710,287 

 

$

1,821,096 

 

 

 

 

 

 

 

Total Debt

 

$

4,031,767 

 

$

4,338,043 

 

Future Maturities of Debt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2016

 

2017

 

2018

 

2019

 

2020

Thereafter

 

Total

Revolver

$

 —

 

$

1,511,495 

 

$

 —

 

$

 —

 

$

 —

 —

 

$

1,511,495 

Subordinated promissory notes

 

500,000 

 

 

 —

 

 

 —

 

 

 —

 

 

 —

 —

 

 

500,000 

Term debt and equipment notes

 

625,353 

 

 

679,808 

 

 

394,214 

 

 

198,707 

 

 

118,175  30,880 

 

 

2,047,137 

Total

$

1,125,353 

 

$

2,191,303 

 

$

394,214 

 

$

198,707 

 

$

118,175  30,880 

 

$

4,058,632 

 


Debt (Bank Debt Narrative) (Details)
v5.17.1.24
Debt (Bank Debt Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Outstanding balance, line of credit $ 1,511,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
$ 2,071,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Percent Borrowable of net Elegible Recievable 80.00%hrt_PercentBorrowableOfNetElegibleRecievableRevolvingLoan
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Percent Borrowable of net Eligible Raw Materials Inventory 50.00%hrt_PercentBorrowableOfNetEligibleRawMaterialsInventoryRevolvingLoan
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Revolver, interest rate at end of period 3.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Amount available under line of credit facility 917,830us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Revolving Credit Facility [Member] | Prime Rate [Member]    
Debt Instrument [Line Items]    
Spread on variable rate 0.25%us-gaap_DerivativeBasisSpreadOnVariableRate
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
 
Equipment Line of Credit [Member]    
Debt Instrument [Line Items]    
Outstanding balance, line of credit 336,850us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
 
Equipment Line Of Credit 2013 [Member] | Equipment Line of Credit [Member]    
Debt Instrument [Line Items]    
Outstanding balance, line of credit 740,999us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2013Member
 
line of credit, interest during period 4.65%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2013Member
 
Line of credit, draw period 1 year  
line of credit, expiration period 5 years  
Line of credit, maturity date Mar. 29, 2019  
Approximate monthly principal and interest payment 14,000us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2013Member
 
Maximum borrowing capacity 1,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2013Member
 
Equipment Line Of Credit 2014 [Member] | Equipment Line of Credit [Member]    
Debt Instrument [Line Items]    
Outstanding balance, line of credit 415,785us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2014Member
 
line of credit, interest during period 4.67%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2014Member
 
Line of credit, draw period 1 year  
line of credit, expiration period 5 years  
Line of credit, maturity date Jun. 26, 2020  
Approximate monthly principal and interest payment 8,000us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2014Member
 
Maximum borrowing capacity 1,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2014Member
 
Equipment Line Of Credit 2015 [Member] | Equipment Line of Credit [Member]    
Debt Instrument [Line Items]    
Outstanding balance, line of credit 336,850us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2015Member
 
Line of credit, draw period 1 year  
line of credit, expiration period 6 years  
Line of credit, maturity date Jun. 19, 2021  
Maximum borrowing capacity 1,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2015Member
 
Earliest repayment period, from date of loan 1 year  
Equipment Line Of Credit 2015 [Member] | Equipment Line of Credit [Member] | Prime Rate [Member]    
Debt Instrument [Line Items]    
Spread on variable rate 0.25%us-gaap_DerivativeBasisSpreadOnVariableRate
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentLineOfCredit2015Member
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
 
Term Debt And Equipment Notes [Member] | Commercial Term Loan [Member]    
Debt Instrument [Line Items]    
Debt, stated rate 4.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= hrt_CommercialTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
 
debt, maturity term 5 years  
Approximate monthly principal and interest payment $ 28,000us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_DebtInstrumentAxis
= hrt_CommercialTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
 

Debt (Other Debt Narrative) (Details)
v5.17.1.24
Debt (Other Debt Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
item
Dec. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Term Debt And Equipment Notes [Member] | Equipment Term Loans [Member]        
Debt Instruments [Line Items]        
Number of debt instruments 2hrt_NumberOfDebtInstruments
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
     
Debt instrument, face amount     $ 272,500us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
 
Approximate monthly principal and interest payment 5,000us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
     
Debt instrument, term 5 years      
Debt, stated rate 4.66%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
     
Subordinated Promissory Notes [Member]        
Debt Instruments [Line Items]        
Debt instrument, face amount       500,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
Interest rate 12.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
10.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
  10.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
Debt, fair value 416,950us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
     
Fair value of warrants subordinated debt 83,050hrt_FairValueOfWarrantsSubordinatedDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
     
Non-cash interest expense 27,683us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
27,683us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
   
Unamortized discount $ 26,865us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
     

Debt (Summary of Debt) (Details)
v5.17.1.24
Debt (Summary of Debt) (Details) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Subordinated promissory notes $ 473,135us-gaap_SubordinatedDebt $ 445,452us-gaap_SubordinatedDebt
Total Debt 4,031,767us-gaap_DebtLongtermAndShorttermCombinedAmount 4,338,043us-gaap_DebtLongtermAndShorttermCombinedAmount
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Revolving line of credit 1,511,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
2,071,495us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Equipment Line of Credit [Member]    
Debt Instrument [Line Items]    
Revolving line of credit 336,850us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
 
Term Debt And Equipment Notes [Member]    
Debt Instrument [Line Items]    
Term notes payable 1,710,287us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
1,821,096us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Debt And Equipment Notes [Member] | Commercial Term Loan [Member]    
Debt Instrument [Line Items]    
Term notes payable 714,175us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_CommercialTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
1,009,977us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_CommercialTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Debt And Equipment Notes [Member] | Equipment Term Loans [Member]    
Debt Instrument [Line Items]    
Term notes payable 879,898us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
640,734us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Debt And Equipment Notes [Member] | Equipment Notes [Member]    
Debt Instrument [Line Items]    
Term notes payable $ 116,214us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
$ 170,385us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= hrt_EquipmentNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember

Debt (Future Minimum of Debt) (Details)
v5.17.1.24
Debt (Future Minimum of Debt) (Details) (USD $)
Dec. 31, 2015
Future maturities of debt  
2016 $ 1,125,353us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2017 2,191,303us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2018 394,214us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2019 198,707us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2020 118,175us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Thereafter 30,880us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Long-term Debt, Total 4,058,632us-gaap_LongTermDebt
Revolving Credit Facility [Member]  
Future maturities of debt  
2016 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
2017 1,511,495us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
2018 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
2019 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
2020 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Thereafter 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Long-term Debt, Total 1,511,495us-gaap_LongTermDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Subordinated Promissory Notes [Member]  
Future maturities of debt  
2016 500,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
2017 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
2018 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
2019 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
2020 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
Thereafter 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
Long-term Debt, Total 500,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
Term Debt And Equipment Notes [Member]  
Future maturities of debt  
2016 625,353us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
2017 679,808us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
2018 394,214us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
2019 198,707us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
2020 118,175us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Thereafter 30,880us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Long-term Debt, Total $ 2,047,137us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember

Income Taxes
v5.17.1.24
Income Taxes
12 Months Ended
Dec. 31, 2015
Income Taxes [Abstract]  
Income Taxes

6.  Income Taxes

 

The income tax provision consists of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Current:

 

 

 

 

 

 

Federal

 

$

 —

 

$

 —

State

 

 

932 

 

 

2,168 

Total current income taxes

 

 

932 

 

 

2,168 

Deferred:

 

 

 

 

 

 

Federal

 

 

 —

 

 

 —

State

 

 

 —

 

 

 —

Total deferred income taxes

 

 

 —

 

 

 —

Total income tax provision

 

$

932 

 

$

2,168 

 

The components of deferred income taxes are as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Deferred income taxes:

 

 

 

 

 

 

Current deferred tax assets:

 

 

 

 

 

 

Inventories

 

$

93,600 

 

$

188,300 

Bad debt reserve

 

 

23,700 

 

 

65,200 

Accrued expenses

 

 

 —

 

 

25,100 

Total current deferred tax assets

 

 

117,300 

 

 

278,600 

Long-term deferred tax assets:

 

 

 

 

 

 

Net operating loss carryforwards

 

 

3,221,000 

 

 

2,982,100 

Foreign net operating loss carryforwards

 

 

 —

 

 

291,100 

Federal and state tax credit carryforwards

 

 

608,000 

 

 

421,700 

Patents and intangibles

 

 

68,100 

 

 

73,000 

Stock compensation

 

 

89,800 

 

 

89,700 

Other long term

 

 

45,500 

 

 

142,100 

Total long-term deferred tax assets

 

 

4,032,400 

 

 

3,999,700 

Total deferred tax assets

 

 

4,149,700 

 

 

4,278,300 

Current deferred tax liabilities:

 

 

 

 

 

 

Prepaid expenses

 

 

(64,600)

 

 

(59,900)

Long-term deferred tax liabilities:

 

 

 

 

 

 

Property, plant and equipment

 

 

(612,800)

 

 

(976,400)

Total deferred tax liabilities

 

 

(677,400)

 

 

(1,036,300)

Deferred tax valuation allowance

 

 

(3,472,300)

 

 

(3,242,000)

Net deferred tax assets (liabilities)

 

$

 —

 

$

 —

 

 

 

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax-planning strategies in making this assessment. As of December 31, 2015, the company continues to maintain a valuation allowance against all of its domestic and foreign deferred tax assets.

 

For the year ended December 31, 2015, the Company has federal and state net operating loss carryforwards totaling $8,195,636 and $8,231,513 respectively, which begin to expire in 2031. The Company also had federal and state tax credit carryovers of $361,000 and $380,000, respectively. The federal and state credits begin to expire in 2027 and 2016, respectively.

 

The Company files a consolidated federal income tax return.  The actual income tax provision differs from applying the Federal statutory income tax rate (34%) to the pre-income tax loss from continuing operations as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Tax (benefit) provision computed at statutory rate

 

$

(145,442)

 

$

224,867 

Increases (reductions) due to:

 

 

 

 

 

 

Change in valuation allowance

 

 

230,300 

 

 

(136,268)

State income taxes, net of federal benefit

 

 

615 

 

 

23,475 

Permanent differences

 

 

479 

 

 

14,561 

Tax credits (federal and state)

 

 

(108,194)

 

 

(6,630)

Utilization of deferred taxes previously reserved

 

 

 —

 

 

(117,837)

Differences on prior returns (federal and state)

 

 

23,174 

 

 

 —

Income tax provision

 

$

932 

 

$

2,168 

 


Income Taxes (Tables)
v5.17.1.24
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Taxes [Abstract]  
Income Tax Provision

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Current:

 

 

 

 

 

 

Federal

 

$

 —

 

$

 —

State

 

 

932 

 

 

2,168 

Total current income taxes

 

 

932 

 

 

2,168 

Deferred:

 

 

 

 

 

 

Federal

 

 

 —

 

 

 —

State

 

 

 —

 

 

 —

Total deferred income taxes

 

 

 —

 

 

 —

Total income tax provision

 

$

932 

 

$

2,168 

 

Deferred Income Taxes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Deferred income taxes:

 

 

 

 

 

 

Current deferred tax assets:

 

 

 

 

 

 

Inventories

 

$

93,600 

 

$

188,300 

Bad debt reserve

 

 

23,700 

 

 

65,200 

Accrued expenses

 

 

 —

 

 

25,100 

Total current deferred tax assets

 

 

117,300 

 

 

278,600 

Long-term deferred tax assets:

 

 

 

 

 

 

Net operating loss carryforwards

 

 

3,221,000 

 

 

2,982,100 

Foreign net operating loss carryforwards

 

 

 —

 

 

291,100 

Federal and state tax credit carryforwards

 

 

608,000 

 

 

421,700 

Patents and intangibles

 

 

68,100 

 

 

73,000 

Stock compensation

 

 

89,800 

 

 

89,700 

Other long term

 

 

45,500 

 

 

142,100 

Total long-term deferred tax assets

 

 

4,032,400 

 

 

3,999,700 

Total deferred tax assets

 

 

4,149,700 

 

 

4,278,300 

Current deferred tax liabilities:

 

 

 

 

 

 

Prepaid expenses

 

 

(64,600)

 

 

(59,900)

Long-term deferred tax liabilities:

 

 

 

 

 

 

Property, plant and equipment

 

 

(612,800)

 

 

(976,400)

Total deferred tax liabilities

 

 

(677,400)

 

 

(1,036,300)

Deferred tax valuation allowance

 

 

(3,472,300)

 

 

(3,242,000)

Net deferred tax assets (liabilities)

 

$

 —

 

$

 —

 

Federal Income Taxes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Tax (benefit) provision computed at statutory rate

 

$

(145,442)

 

$

224,867 

Increases (reductions) due to:

 

 

 

 

 

 

Change in valuation allowance

 

 

230,300 

 

 

(136,268)

State income taxes, net of federal benefit

 

 

615 

 

 

23,475 

Permanent differences

 

 

479 

 

 

14,561 

Tax credits (federal and state)

 

 

(108,194)

 

 

(6,630)

Utilization of deferred taxes previously reserved

 

 

 —

 

 

(117,837)

Differences on prior returns (federal and state)

 

 

23,174 

 

 

 —

Income tax provision

 

$

932 

 

$

2,168 

 


Income Taxes (Narrative) (Details)
v5.17.1.24
Income Taxes (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Operating Loss Carryforwards [Line Items]  
Federal statutory income tax rate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Federal Tax Authority [Member]  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 8,195,636us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
Tax Credit Carryforward, Amount 361,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
State Jurisdiction [Member]  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 8,231,513us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Tax Credit Carryforward, Amount 380,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember

Income Taxes (Income Tax Provision) (Details)
v5.17.1.24
Income Taxes (Income Tax Provision) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Current:    
State $ 932us-gaap_CurrentStateAndLocalTaxExpenseBenefit $ 2,168us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Total current income taxes 932us-gaap_CurrentIncomeTaxExpenseBenefit 2,168us-gaap_CurrentIncomeTaxExpenseBenefit
Income tax provision $ 932us-gaap_IncomeTaxExpenseBenefit $ 2,168us-gaap_IncomeTaxExpenseBenefit

Income Taxes (Deferred Income Taxes) (Details)
v5.17.1.24
Income Taxes (Deferred Income Taxes) (Details) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Current deferred tax assets:    
Inventories $ 93,600us-gaap_DeferredTaxAssetsInventory $ 188,300us-gaap_DeferredTaxAssetsInventory
Bad debt reserve 23,700us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts 65,200us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
Accrued expenses 0us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 25,100us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Total current deferred tax assets 117,300us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent 278,600us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent
Long-term deferred tax assets:    
Net operating loss carryforwards 3,221,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 2,982,100us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Foreign net operating loss carryforwards 0us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign 291,100us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign
Federal and state tax credit carryforward 608,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 421,700us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Patents and intangibles 68,100hrt_DeferredTaxAssetPatentsAndIntangibles 73,000hrt_DeferredTaxAssetPatentsAndIntangibles
Stock compensation 89,800us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 89,700us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Other long term 45,500us-gaap_DeferredTaxAssetsOther 142,100us-gaap_DeferredTaxAssetsOther
Total long-term deferred tax assets 4,032,400us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent 3,999,700us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent
Total deferred tax assets 4,149,700us-gaap_DeferredTaxAssetsGross 4,278,300us-gaap_DeferredTaxAssetsGross
Current deferred tax liabilities:    
Prepaid expenses (64,600)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses (59,900)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Long-term deferred tax liabilities:    
Property, plant and equipment (612,800)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (976,400)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Total deferred tax liabilities (677,400)us-gaap_DeferredIncomeTaxLiabilities (1,036,300)us-gaap_DeferredIncomeTaxLiabilities
Deferred tax valuation allowance (3,472,300)us-gaap_DeferredTaxAssetsValuationAllowance (3,242,000)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred tax assets (liabilities) $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet

Income Taxes (Federal Income Taxes) (Details)
v5.17.1.24
Income Taxes (Federal Income Taxes) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Taxes [Abstract]    
Tax (benefit) provision computed at statutory rate $ (145,442)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ 224,867us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Change in valuation allowance 230,300us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount (136,268)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
State income taxes, net of federal benefit 615us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 23,475us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Permanent differences 479hrt_PermanentDifferences 14,561hrt_PermanentDifferences
Tax credits (federal and state) (108,194)us-gaap_IncomeTaxReconciliationTaxCredits (6,630)us-gaap_IncomeTaxReconciliationTaxCredits
Utilization of deferred taxes previously recorded   (117,837)hrt_Utilizationofdeferredtaxespreviouslyrecorded
Differences on prior returns (federal and state) 23,174hrt_IncomeTaxReconciliationDifferencesOnPriorReturnsFederalAndState  
Income tax provision $ 932us-gaap_IncomeTaxExpenseBenefit $ 2,168us-gaap_IncomeTaxExpenseBenefit

Employee Benefit Plans
v5.17.1.24
Employee Benefit Plans
12 Months Ended
Dec. 31, 2015
Employee Benefit Plans [Abstract]  
Employee Benefit Plans

7.  Employee Benefit Plans

 

The Company sponsors an Employee Savings and Investment Plan under Section 401(k) of the Internal Revenue Code covering all eligible employees of the Company.  Employees can contribute up to 90% of their eligible compensation to the maximum allowable by the IRS.  The Company’s matching contributions are at the discretion of the Company.  The Company’s matching contributions in 2015 and 2014 were $47,858 and $46,958, respectively.

 


Employee Benefit Plans (Details)
v5.17.1.24
Employee Benefit Plans (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Employee Benefit Plans [Abstract]    
Maximum annual contribution per employee, percent of eligible compensation 90.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent  
Matching 401K contribution $ 47,858us-gaap_DefinedContributionPlanCostRecognized $ 46,958us-gaap_DefinedContributionPlanCostRecognized

Commitments and Contingencies
v5.17.1.24
Commitments and Contingencies
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies [Abstract]  
Commitments and Contingencies

8.  Commitments and Contingencies

 

Legal matters

 

In the ordinary course of its business, the Company is involved in various legal proceedings involving a variety of matters. The Company does not believe there are any pending legal proceedings that will have a material impact on the Company’s financial position or results of operations.

 

Operating lease agreements

 

In 2014, the Company entered into two operating leases for office equipment. The leases require future minimum annual lease payments of  $7,287 and $1,602 for fiscal years 2016 and 2017, respectively.

 


Commitments and Contingencies - (Details)
v5.17.1.24
Commitments and Contingencies - (Details) (USD $)
12 Months Ended
Dec. 31, 2014
agreement
Dec. 31, 2015
Commitments and Contingencies [Abstract]    
Number of operating lease agreements 2hrt_NumberOfOperatingLeaseAgreements  
Operating lease payments due in 2016   $ 7,287us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
Operating lease payments due in 2017   $ 1,602us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears

Shareholders' Equity
v5.17.1.24
Shareholders' Equity
12 Months Ended
Dec. 31, 2015
Shareholders' Equity [Abstract]  
Shareholders' Equity

9.  Shareholders’ equity

 

Common stock

 

In 2015, 23,300 shares were issued out of treasury as a result of the exercise of stock options and no warrants were exercised.  In 2014, 26,100 and 30,000 shares were issued as a result of the exercise of stock options and warrants, respectively (see below). 

 

No dividends were declared or paid in 2015 or 2014.  

 

Warrants

 

In connection with the subordinated promissory notes issued in December 2013 (see Note 5), the Company issued warrants to purchase 100,000 shares of the Company’s common stock. The warrants are exercisable during the period commencing six months after issuance and for three years from issuance, at an exercise price equal to $3.51 per share, namely, the closing market price of the Company’s common stock on the day prior to the closing date of the offering. The warrants expire in December 2016. During 2015, there were no warrants exercised.  During 2014, the Company received proceeds of $105,300 from the exercise of 30,000 warrants.

 

As of December 31, 2015, 70,000 warrants remain unexercised.

 

Stock options and Share-Based Incentive Plan

 

In March 2010, the Company's Board of Directors adopted the Arrhythmia Research Technology, Inc. 2010 Equity Incentive Plan (the “2010 Plan”). The 2010 Plan authorizes the issuance of an aggregate of 500,000 shares. The Company's 2001 Stock Option Plan (the "2001 Plan"), which expired in 2011, will continue to govern outstanding options but no further options will be granted under the 2001 Plan. The Company now has one plan providing the Company flexibility to award a mix of stock options, equity incentive grants, performance awards and other types of stock-based compensation to certain eligible employees, non-employee directors, or consultants and under which an aggregate of 500,000 shares have been reserved for such grants. The options granted have either six or ten year contractual terms that vest annually over a five-year term.

 

At December 31, 2015, there were options to acquire an aggregate of 184,500 shares outstanding; 15,000 from the 2001 Plan and 169,500 from the 2010 Plan. At December 31, 2015, there were 318,000 shares available for future grants under the 2010 Plan, after giving effect to shares which became available for reissuance due to expired or forfeited options.

 

The fair value of each stock option award is estimated on the date of grant using the Black-Scholes option pricing model that uses the assumptions noted in the following table. Expected volatilities are based on historical volatility of the Common Stock using historical periods consistent with the expected term of the options. The expected term of options granted under the Company’s equity incentive plan, all of which qualify as “plain vanilla,” is based on the average of the contractual term and the vesting period as permitted under SEC Staff Accounting Bulletin Nos. 107 and 110. The risk-free rate is based on the yield of a U.S. Treasury security with a term consistent with the option.

 

During 2015 and 2014 there were 62,500 and 7,500 new option grants, respectively. The assumptions used to measure the fair value of option grants in 2015 and 2014 were as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Expected option term

 

 

4.0 to 6.5

 

 

 

6.5

 

Expected volatility factor

 

 

23.8% to 26.7%

 

 

 

27%

 

Risk-free rate

 

 

.90% to 1.28%

 

 

 

0.96%

 

Expected annual dividend yield

 

 

—%

 

 

 

—%

 

 

The following table sets forth the stock option transactions for the year ended December 31, 2015:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

Weighted

 

average

 

 

 

 

 

 

 

Average

 

remaining

 

Aggregate

 

 

Number of

 

Exercise

 

contractual

 

Intrinsic

 

 

options

 

Price

 

term (in years)

 

Value

Outstanding at December 31, 2014

 

165,800 

 

$

5.58 

 

6.09 

 

$

305,124 

Granted

 

62,500 

 

 

6.36 

 

 

 

 

 

Exercised

 

(23,300)

 

 

3.44 

 

 

 

 

 

Forfeited

 

(19,500)

 

 

4.74 

 

 

 

 

 

Expired

 

(1,000)

 

 

3.67 

 

 

 

 

 

Outstanding at December 31, 2015

 

184,500 

 

 

6.21 

 

6.80 

 

$

235,293 

Exercisable at December 31, 2015

 

83,500 

 

$

6.60 

 

4.73 

 

$

106,565 

Exercisable at December 31, 2014

 

74,400 

 

$

6.07 

 

4.75 

 

$

119,342 

 

The total intrinsic value of options exercised during 2015 and 2014 were $60,197 and $80,800, respectively. For the years ended December 31, 2015 and 2014, share-based compensation expense related to stock options and the non-cash issuance of common stock amounted to $29,178 and $33,390, respectively, and is included in general and administrative expenses. As of December 31, 2015 and 2014, there was $134,160 and $86,896 of unrecognized compensation costs, respectively, related to non-vested share-based compensation arrangements granted under the stock option plan.  This cost is expected to be recognized over a weighted average period of 3.2 years. The weighted average grant date fair value of options issued in 2015 was $1.66.

 


Shareholders' Equity (Tables)
v5.17.1.24
Shareholders' Equity (Tables)
12 Months Ended
Dec. 31, 2015
Shareholders' Equity [Abstract]  
Fair Value of Option Grants

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Expected option term

 

 

4.0 to 6.5

 

 

 

6.5

 

Expected volatility factor

 

 

23.8% to 26.7%

 

 

 

27%

 

Risk-free rate

 

 

.90% to 1.28%

 

 

 

0.96%

 

Expected annual dividend yield

 

 

—%

 

 

 

—%

 

 

Stock Option Transactions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

Weighted

 

average

 

 

 

 

 

 

 

Average

 

remaining

 

Aggregate

 

 

Number of

 

Exercise

 

contractual

 

Intrinsic

 

 

options

 

Price

 

term (in years)

 

Value

Outstanding at December 31, 2014

 

165,800 

 

$

5.58 

 

6.09 

 

$

305,124 

Granted

 

62,500 

 

 

6.36 

 

 

 

 

 

Exercised

 

(23,300)

 

 

3.44 

 

 

 

 

 

Forfeited

 

(19,500)

 

 

4.74 

 

 

 

 

 

Expired

 

(1,000)

 

 

3.67 

 

 

 

 

 

Outstanding at December 31, 2015

 

184,500 

 

 

6.21 

 

6.80 

 

$

235,293 

Exercisable at December 31, 2015

 

83,500 

 

$

6.60 

 

4.73 

 

$

106,565 

Exercisable at December 31, 2014

 

74,400 

 

$

6.07 

 

4.75 

 

$

119,342 

 


Shareholders' Equity (Narrative) (Details)
v5.17.1.24
Shareholders' Equity (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends declared or paid $ 0us-gaap_DividendsPayableCurrentAndNoncurrent $ 0us-gaap_DividendsPayableCurrentAndNoncurrent  
Subordinated debt, warrants of common stock issued     100,000hrt_Subordinateddebtwarrantsofcommonstockissued
Warrants exercisable commencing period 6 months    
Warrants exercisable period 3 years    
Exercise price of warrants $ 3.51us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1    
Proceeds from warrant exercises 0us-gaap_ProceedsFromWarrantExercises 105,300us-gaap_ProceedsFromWarrantExercises  
Warrants exercised 0hrt_WarrantsExercised 30,000hrt_WarrantsExercised  
Warrants unexercised 70,000us-gaap_ClassOfWarrantOrRightOutstanding 70,000us-gaap_ClassOfWarrantOrRightOutstanding  
Shares outstanding 2,801,639us-gaap_CommonStockSharesOutstanding 2,778,339us-gaap_CommonStockSharesOutstanding  
Number of options, Granted in period 62,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 7,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross  
Intrinsic value of options exercised 60,197us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 80,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue  
Exercised in period 23,300us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised    
Share-based compensation expense 29,178us-gaap_AllocatedShareBasedCompensationExpense 33,390us-gaap_AllocatedShareBasedCompensationExpense  
Unrecognized compensation costs related to non-vested shares $ 134,160us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized $ 86,896us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized  
Unrecognized compensation costs, recognized over weighted average period 3 years 2 months 12 days    
Weighted average grant date fair value $ 1.66us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue    
Employee Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Issued During Period, Shares, New Issues   26,100us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
2001 and 2010 Plans [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares outstanding 184,500us-gaap_CommonStockSharesOutstanding
/ us-gaap_PlanNameAxis
= hrt_EquityIncentivePlansMember
   
The 2001 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares outstanding 15,000us-gaap_CommonStockSharesOutstanding
/ us-gaap_PlanNameAxis
= hrt_EquityIncentivePlan2001Member
   
The 2010 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= hrt_EquityIncentivePlan2010Member
   
Vesting period 5 years    
Shares outstanding 169,500us-gaap_CommonStockSharesOutstanding
/ us-gaap_PlanNameAxis
= hrt_EquityIncentivePlan2010Member
   
Shares available for future grants 318,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= hrt_EquityIncentivePlan2010Member
   
The 2010 Plan [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contractual Term 10 years    
The 2010 Plan [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contractual Term 6 years    
Treasury stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Issuance of common stock from treasury, shares 23,300us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
26,100us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
 

Shareholders' Equity (Fair Value of Option Grants) (Details)
v5.17.1.24
Shareholders' Equity (Fair Value of Option Grants) (Details)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]    
Expected option term, years 6 years 6 months  
Expected volatility factor 27.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate  
Risk-free rate 0.96%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate  
Minimum [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Expected option term, years   4 years
Expected volatility factor   23.80%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Risk-free rate   0.90%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Expected option term, years   6 years 6 months
Expected volatility factor   26.70%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Risk-free rate   1.28%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember

Shareholders' Equity (Stock Option Transactions) (Details)
v5.17.1.24
Shareholders' Equity (Stock Option Transactions) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Shareholders' Equity [Abstract]    
Number of options, Outstanding, Beginning Balance 165,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber  
Weighted Average Exercise Price, Outstanding $ 5.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice  
Weighted average remaining contractual term (in years), Outstanding 6 years 9 months 18 days 6 years 1 month 2 days
Aggregate Intrinsic Value, Outstanding $ 305,124us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue  
Number of options, Granted in period 62,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 7,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Weighted Average Exercise Price, Granted in period $ 6.36us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice  
Number of options, Exercised in period (23,300)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised  
Weighted Average Exercise Price, Exercised in period $ 3.44us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice  
Number of options, Forfeited in period (19,500)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares  
Weighed Average Exercise Price, Forfeited in period $ 4.74us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice  
Number of options, Expired in period (1,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod  
Weighted Average Exercise Price, Expired in period $ 3.67us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice  
Number of options, Outstanding, Ending Balance 184,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 165,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Weighted Average Exercise Price, Outstanding $ 6.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice $ 5.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Aggregate Intrinsic Value, Outstanding 235,293us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue 305,124us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
Number of options, Exercisable 83,500us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions 74,400us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Weighted Average Exercise Price, Exercisable $ 6.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice $ 6.07us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Weighted average remaining contractual term (in years), Exercisable 4 years 8 months 23 days 4 years 9 months
Aggregate Intrinsic Value, Exercisable $ 106,565us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue $ 119,342us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

Earnings per share
v5.17.1.24
Earnings per share
12 Months Ended
Dec. 31, 2015
Earnings per Share [Abstract]  
Earnings per Share

10.  Earnings per share

 

Basic earnings (loss) per share is computed by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding.  The computation of diluted earnings (loss) per share is similar to the computation of basic earnings (loss) per share except that the denominator is increased to include the average number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued.  In addition, the numerator is adjusted for any changes in net income (loss) that would result from the assumed conversions of those potential shares.

 

As of December 31, 2015 there were options to purchase 184,500 shares and warrants to purchase 70,000 shares of the Company's common stock outstanding, all of which were anti-dilutive. Therefore, none of these options or warrants were included in the calculation of loss per share in 2015.

 

As of December 31, 2014 there were options to purchase 165,800 shares and warrants to purchase 70,000 shares of the Company's common stock outstanding. As of December 31, 2014,  47,500 of the options to purchase, and none of the warrants, were anti-dilutive and therefore not included in the calculation of earnings per share in 2014. 

 

 

The following table shows the calculation of earnings (loss) per share for the years ended December 31, 2015 and 2014:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Income (loss) from continuing operations

 

$

(791,776)

 

$

660,988 

Income (loss) from discontinued operations, net of tax

 

 

362,610 

 

 

(1,779)

Net income (loss) available to common shareholders

 

$

(429,166)

 

$

659,209 

Basic EPS:

 

 

 

 

 

 

Weighted average common shares outstanding

 

 

2,784,757 

 

 

2,742,080 

Earnings (loss) per share - basic

 

 

 

 

 

 

Continuing operations

 

$

(0.28)

 

$

0.24 

Discontinued operations

 

 

0.13 

 

 

 —

Consolidated basic EPS

 

$

(0.15)

 

$

0.24 

Diluted EPS:

 

 

 

 

 

 

Weighted average common shares outstanding

 

 

2,784,757 

 

 

2,742,080 

Assumed conversion of net common shares issuable
under stock option plans

 

 

 —

 

 

91,889 

Assumed conversion of net common shares issuable
under warrants

 

 

 —

 

 

29,129 

Weighted average common and common equivalent shares
outstanding, diluted

 

 

2,784,757 

 

 

2,863,098 

Earnings (loss) per share - diluted

 

 

 

 

 

 

Continuing operations

 

$

(0.28)

 

$

0.23 

Discontinued operations

 

 

0.13 

 

 

 —

Consolidated diluted EPS

 

$

(0.15)

 

$

0.23 

 


Earnings per share (Tables)
v5.17.1.24
Earnings per share (Tables)
12 Months Ended
Dec. 31, 2015
Earnings per Share [Abstract]  
Calculation of earnings (loss) per share

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Income (loss) from continuing operations

 

$

(791,776)

 

$

660,988 

Income (loss) from discontinued operations, net of tax

 

 

362,610 

 

 

(1,779)

Net income (loss) available to common shareholders

 

$

(429,166)

 

$

659,209 

Basic EPS:

 

 

 

 

 

 

Weighted average common shares outstanding

 

 

2,784,757 

 

 

2,742,080 

Earnings (loss) per share - basic

 

 

 

 

 

 

Continuing operations

 

$

(0.28)

 

$

0.24 

Discontinued operations

 

 

0.13 

 

 

 —

Consolidated basic EPS

 

$

(0.15)

 

$

0.24 

Diluted EPS:

 

 

 

 

 

 

Weighted average common shares outstanding

 

 

2,784,757 

 

 

2,742,080 

Assumed conversion of net common shares issuable
under stock option plans

 

 

 —

 

 

91,889 

Assumed conversion of net common shares issuable
under warrants

 

 

 —

 

 

29,129 

Weighted average common and common equivalent shares
outstanding, diluted

 

 

2,784,757 

 

 

2,863,098 

Earnings (loss) per share - diluted

 

 

 

 

 

 

Continuing operations

 

$

(0.28)

 

$

0.23 

Discontinued operations

 

 

0.13 

 

 

 —

Consolidated diluted EPS

 

$

(0.15)

 

$

0.23 

 


Earnings per share (Narrative) (Details)
v5.17.1.24
Earnings per share (Narrative) (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Options outstanding 184,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 165,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Warrants to purchase outstanding 70,000us-gaap_ClassOfWarrantOrRightOutstanding 70,000us-gaap_ClassOfWarrantOrRightOutstanding
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive shares 184,500us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
47,500us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive shares 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember
 

Earnings per share (Calculation of earnings (loss) per share ) (Details)
v5.17.1.24
Earnings per share (Calculation of earnings (loss) per share ) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Earnings per Share [Abstract]    
Income (loss) from continuing operations $ (791,776)us-gaap_IncomeLossFromContinuingOperations $ 660,988us-gaap_IncomeLossFromContinuingOperations
Income (loss) from discontinued operations, net of tax 362,610us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity (1,779)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Net income (loss) $ (429,166)us-gaap_NetIncomeLoss $ 659,209us-gaap_NetIncomeLoss
Basic EPS:    
Weighted average common shares outstanding 2,784,757us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 2,742,080us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Earnings (loss) per share - basic    
Continuing operations $ (0.28)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.24us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Discontinued operations $ 0.13us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
Earnings (loss) per share - basic $ (0.15)us-gaap_EarningsPerShareBasic $ 0.24us-gaap_EarningsPerShareBasic
Diluted EPS:    
Assumed conversion of net common shares issuable under stock option plans 0hrt_AssumedConversionOfNetCommonSharesIssuableUnderStockOptions 91,889hrt_AssumedConversionOfNetCommonSharesIssuableUnderStockOptions
Assumed conversion of net common shares issuable under warrants 0hrt_AssumedConversionOfNetCommonSharesIssuableUnderWarrants 29,129hrt_AssumedConversionOfNetCommonSharesIssuableUnderWarrants
Weighted average common and common equivalent shares outstanding, diluted 2,784,757us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 2,863,098us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings (loss) per share - diluted    
Continuing operations $ (0.28)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.23us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Discontinued operations $ 0.13us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
Earnings (loss) per share - diluted $ (0.15)us-gaap_EarningsPerShareDiluted $ 0.23us-gaap_EarningsPerShareDiluted

Industry and Geographic Segments
v5.17.1.24
Industry and Geographic Segments
12 Months Ended
Dec. 31, 2015
Industry and Geographic Segments [Abstract]  
Industry and Geographic Segments

 

11.  Industry and Geographic Segments

 

The Company’s Chief Operating and Decision Maker ("CODM") manages the operations and reviews the results of operations as a single reporting unit. While the Company operates its business as one segment, the Company has diversified manufacturing capabilities as evidenced by its product offerings across several industry categories supporting customers around the globe.

 

The following table sets forth, for the periods indicated, the consolidated revenue and percentages of revenue from continuing operations derived from the sales of the Company's products and services in certain industries.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Revenue for the Years Ended December 31,

 

 

2015

 

   %

 

2014

 

%

Medical

 

$

16,770,788 

 

78 

 

$

19,714,328 

 

82 

Automotive/Industrial

 

 

2,839,926 

 

13 

 

 

1,753,946 

 

Military and Law Enforcement

 

 

943,603 

 

 

 

1,358,568 

 

Consumer Products

 

 

647,190 

 

 

 

852,030 

 

Other

 

 

293,677 

 

 

 

391,420 

 

Total

 

$

21,495,184 

 

100 

 

$

24,070,292 

 

100 

 

The following table sets forth, for the periods indicated, the consolidated revenue and percentages of revenue from continuing operations derived from the sales of all of the Company's products and services by geographic market.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Revenue for the Years Ended December 31,

 

 

2015

 

   %

 

2014

 

%

United States 

 

$

13,199,188 

 

61 

 

$

13,050,717 

 

54 

Asia

 

 

4,774,910 

 

22 

 

 

5,168,283 

 

21 

Europe 

 

 

1,662,318 

 

 

 

1,344,098 

 

Canada 

 

 

1,607,445 

 

 

 

3,791,229 

 

16 

Other 

 

 

251,323 

 

 

 

715,965 

 

Total 

 

$

21,495,184 

 

100 

 

$

24,070,292 

 

100 

 


Industry and Geographic Segments (Tables)
v5.17.1.24
Industry and Geographic Segments (Tables)
12 Months Ended
Dec. 31, 2015
Industry and Geographic Segments [Abstract]  
Sales by Industry Segments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Revenue for the Years Ended December 31,

 

 

2015

 

   %

 

2014

 

%

Medical

 

$

16,770,788 

 

78 

 

$

19,714,328 

 

82 

Automotive/Industrial

 

 

2,839,926 

 

13 

 

 

1,753,946 

 

Military and Law Enforcement

 

 

943,603 

 

 

 

1,358,568 

 

Consumer Products

 

 

647,190 

 

 

 

852,030 

 

Other

 

 

293,677 

 

 

 

391,420 

 

Total

 

$

21,495,184 

 

100 

 

$

24,070,292 

 

100 

 

Sales by Geographic Market

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Revenue for the Years Ended December 31,

 

 

2015

 

   %

 

2014

 

%

United States 

 

$

13,199,188 

 

61 

 

$

13,050,717 

 

54 

Asia

 

 

4,774,910 

 

22 

 

 

5,168,283 

 

21 

Europe 

 

 

1,662,318 

 

 

 

1,344,098 

 

Canada 

 

 

1,607,445 

 

 

 

3,791,229 

 

16 

Other 

 

 

251,323 

 

 

 

715,965 

 

Total 

 

$

21,495,184 

 

100 

 

$

24,070,292 

 

100 

 


Industry and Geographic Segments (Sales by Industry Segments) (Details)
v5.17.1.24
Industry and Geographic Segments (Sales by Industry Segments) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]    
Revenues $ 21,495,184us-gaap_Revenues $ 24,070,292us-gaap_Revenues
Revenue by Percent 100.00%hrt_RevenueByPercent 100.00%hrt_RevenueByPercent
Medical [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Revenues 16,770,788us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MedicalMember
19,714,328us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MedicalMember
Revenue by Percent 78.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MedicalMember
82.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MedicalMember
Automotive/Industrial [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Revenues 2,839,926us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_AutomotiveMember
1,753,946us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_AutomotiveMember
Revenue by Percent 13.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_AutomotiveMember
7.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_AutomotiveMember
Military and Law Enforcement [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Revenues 943,603us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MilitaryAndLawEnforcementMember
1,358,568us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MilitaryAndLawEnforcementMember
Revenue by Percent 4.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MilitaryAndLawEnforcementMember
6.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_MilitaryAndLawEnforcementMember
Consumer Products [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Revenues 647,190us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_ConsumerProductsMember
852,030us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_ConsumerProductsMember
Revenue by Percent 4.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_ConsumerProductsMember
3.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_ConsumerProductsMember
Other Product/Service [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Revenues $ 293,677us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_OtherProductServiceMember
$ 391,420us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_OtherProductServiceMember
Revenue by Percent 1.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_OtherProductServiceMember
2.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= hrt_OtherProductServiceMember

Industry and Geographic Segments (Sales by Geographic Market) (Details)
v5.17.1.24
Industry and Geographic Segments (Sales by Geographic Market) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 21,495,184us-gaap_Revenues $ 24,070,292us-gaap_Revenues
Revenue by Percent 100.00%hrt_RevenueByPercent 100.00%hrt_RevenueByPercent
United States [Member] | Operating Segments [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 13,199,188us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
13,050,717us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
Revenue by Percent 61.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
54.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
Asia [Member] | Operating Segments [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 4,774,910us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaMember
5,168,283us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaMember
Revenue by Percent 22.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaMember
21.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaMember
Europe [Member] | Operating Segments [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 1,662,318us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
1,344,098us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
Revenue by Percent 9.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
6.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
Canada [Member] | Operating Segments [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 1,607,445us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_CA
3,791,229us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_CA
Revenue by Percent 7.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_CA
16.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= country_CA
Other Geographic Markets [Member] | Operating Segments [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 251,323us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= hrt_OtherGeographicMarketsMember
$ 715,965us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= hrt_OtherGeographicMarketsMember
Revenue by Percent 1.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= hrt_OtherGeographicMarketsMember
3.00%hrt_RevenueByPercent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementGeographicalAxis
= hrt_OtherGeographicMarketsMember

Discontinued Operations
v5.17.1.24
Discontinued Operations
12 Months Ended
Dec. 31, 2015
Discontinued Operations [Abstract]  
Discontinued Operations

12.  Discontinued Operations

 

The Company's subsidiary, RMDDxUSA Corp. and its Prince Edward Island subsidiary RMDDx Corporation (collectively "WirelessDx"), discontinued operations 2012, filed for relief under Chapter 7 (Liquidation) of the United States Bankruptcy Code in 2014 and on March 20, 2015, the Chapter 7 Order was formally discharged and the case was closed.

 

For 2015 net income of $362,610 was recorded from discontinued operations as a result of the write-off of the remaining liabilities of $320,056 and the reversal of accumulated other comprehensive income of $42,553 from cumulative translation adjustments from RMDDx Corporation.

 

The assets and liabilities of the discontinued operations are listed below:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Cash

 

$

 —

 

$

 —

Total current assets from discontinued operations

 

 

 —

 

 

 —

Total assets from discontinued operations

 

$

 —

 

$

 —

 

 

 

 

 

 

 

Accounts payable and accrued expenses

 

$

 —

 

$

320,056 

Total current liabilities from discontinued operations

 

 

 —

 

 

320,056 

Total liabilities from discontinued operations

 

$

 —

 

$

320,056 

 


Discontinued Operations (Tables)
v5.17.1.24
Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2015
Discontinued Operations [Abstract]  
Assets and Liabilities of Discontinued Operations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended

 

 

December 31,

 

 

2015

 

2014

Cash

 

$

 —

 

$

 —

Total current assets from discontinued operations

 

 

 —

 

 

 —

Total assets from discontinued operations

 

$

 —

 

$

 —

 

 

 

 

 

 

 

Accounts payable and accrued expenses

 

$

 —

 

$

320,056 

Total current liabilities from discontinued operations

 

 

 —

 

 

320,056 

Total liabilities from discontinued operations

 

$

 —

 

$

320,056 

 


Discontinued Operations (Narrative) (Details)
v5.17.1.24
Discontinued Operations (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Accumulated other comprehensive income $ 0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax $ 42,502us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Discontinued Operations [Member] | WirelessDx [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenue from discontinued operations 362,610us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= hrt_WirelessdxMember
 
Liabilities write-off of discontinued operations 320,056hrt_LiabilitiesWriteOffOfDisposalGroupIncludingDiscontinuedOperation
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= hrt_WirelessdxMember
 
Discontinued Operations [Member] | WirelessDx [Member] | Scenario, Adjustment [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Accumulated other comprehensive income $ (42,553)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_DisposalGroupClassificationAxis
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/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= hrt_WirelessdxMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
 

Discontinued Operations (Assets and Liabilities of the Discontinued Operations) (Details)
v5.17.1.24
Discontinued Operations (Assets and Liabilities of the Discontinued Operations) (Details) (USD $)
Dec. 31, 2015
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Cash $ 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents $ 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
Total current liabilities from discontinued operations 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent 320,056us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
Discontinued Operations [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Cash 0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
0us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Total current assets from discontinued operations 0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Total assets from discontinued operations 0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Accounts payable and accrued expenses 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
320,056us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Total current liabilities from discontinued operations 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
320,056us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Total Liabilities from discontinued operations $ 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember
$ 320,056us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
/ us-gaap_DisposalGroupClassificationAxis
= us-gaap_SegmentDiscontinuedOperationsMember

Subsequent Events
v5.17.1.24
Subsequent Events
12 Months Ended
Dec. 31, 2015
Subsequent Events [Abstract]  
Subsequent Events

 

13.  Subsequent Events

 

Assets Held for Sale

 

In January 2016 the Company entered into an agreement to sell two unoccupied buildings and land on its campus in Fitchburg, Massachusetts.  These assets have been classified as Assets Held for Sale at December 31, 2015.  The carrying value of the properties approximates the fair value less the cost to sell.  The Company expects the sale of the properties to be completed by the end of 2016 and does not expect any material impact on the statement of operations.

 

Appointment of Director

 

On February 1, 2016, the Company's Board of Directors appointed Mr. Bryan S.  Ganz a director of the Company, effective February 1, 2016.   A description of Mr. Ganz’s background can be found in the Current Report on Form 8-K filed on February 5, 2016.

 

 


Subsequent Events - (Details)
v5.17.1.24
Subsequent Events - (Details) (Fitchburg, Massachusetts [Member], Subsequent Event [Member])
Jan. 31, 2016
item
Fitchburg, Massachusetts [Member] | Subsequent Event [Member]
 
Subsequent Event [Line Items]  
Number of unoccupied buildings with entered into agreement to sale 2hrt_NumberOfUnoccupiedBuildingsWithEnteredIntoAgreementToSale
/ us-gaap_StatementGeographicalAxis
= hrt_FitchburgMassachusettsMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember