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SUBSEQUENT EVENTS (Details Narrative) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 12, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Designated preferred stock   4,000,000us-gaap_PreferredStockSharesAuthorized 4,000,000us-gaap_PreferredStockSharesAuthorized  
Shares issued in exchange of debt   154,607us-gaap_DebtConversionConvertedInstrumentSharesIssued1    
Line of Credit Borrowing capacity $ 3,050us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity      
Extinguishment of LOC (500)us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet      
Authorized shares under Stock Option Plan   7,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized 4,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized  
Royalty payment   40us-gaap_PaymentsForRoyalties    
Advances under LOC 750us-gaap_ProceedsFromLinesOfCredit 1,550us-gaap_ProceedsFromLinesOfCredit      
LOC Current borrowings 2,300us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding      
Repayment of LOC principal and accrued interest 351us-gaap_RepaymentsOfLinesOfCredit      
Shares of stock pursuant to option exercises 7,915us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised (98,617)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised (35,310)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised (24,924)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Proceeds to the company from option exercises 7us-gaap_ProceedsFromStockOptionsExercised 67us-gaap_ProceedsFromStockOptionsExercised 11us-gaap_ProceedsFromStockOptionsExercised 7us-gaap_ProceedsFromStockOptionsExercised
Series E Preferred Stock [Member]        
Designated preferred stock 12,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Preferred stock, par value per share $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Liquidation preference $ 1,000us-gaap_PreferredStockLiquidationPreference
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Preferred conversion $ 1.90us-gaap_TemporaryEquityLiquidationPreferencePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Sale of shares 12,000us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Sale of share, price per share $ 1,000us-gaap_SaleOfStockPricePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Sale of shares, Conversion ratio 526us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Conversion share stated value $ 1.90us-gaap_TemporaryEquityRedemptionPricePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Shares issued in exchange of debt 2,000us-gaap_DebtConversionConvertedInstrumentSharesIssued1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Debt exchanged, principal 1,950us-gaap_DebtConversionOriginalDebtAmount1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Debt exchanged, accrued interest (28)us-gaap_DebtInstrumentIncreaseAccruedInterest
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Gross proceeds of offering 10,000IWSY_GrossProceedsFromIssuanceOfConvertiblePreferredStock
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Net proceeds of offering 9,925us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
     
Offering expenses $ 75us-gaap_OfferingCostsPartnershipInterests
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember