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DESCRIPTION OF BUSINESS AND OPERATIONS (Details Narrative) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended 3 Months Ended
Mar. 12, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Mar. 15, 2015
State of Incorporation   Delaware      
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        
Line of Credit 1 [Member]          
Line of Credit Borrowing capacity   3,050us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= IWSY_LineOfCredit1Member
     
Advances under LOC   1,550us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_CreditFacilityAxis
= IWSY_LineOfCredit1Member
     
Line of Credit 2 [Member]          
Line of Credit Borrowing capacity   500us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= IWSY_LineOfCredit2Member
     
Advances under LOC           
Line Of Credit [Member] | Minimum [Member]          
Conversion of LOC into shares, price per share   $ 0.95us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Line Of Credit [Member] | Maximum [Member]          
Conversion of LOC into shares, price per share   $ 2.30us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
     
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
       
Series E Preferred Stock [Member] | Cash Distribution [Member]          
Dividend rate         8.00%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_CashDistributionMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember
Series E Preferred Stock [Member] | Stock Distribution [Member]          
Dividend rate         100.00%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= IWSY_StcokDistributionMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesEPreferredStockMember