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SHAREHOLDERS' EQUITY (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 12 Months Ended 1 Months Ended
Nov. 26, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jan. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total intrinsic value of options exercised during the period   $ 2,881us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 1,244us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 1,170us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue  
Unrecognized compensation costs related to non-vested share-based compensation   3,506us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized      
Unrecognized compensation cost, period for recognition   3 years      
Statement [Line Items]          
Shares issued during period, issued for cash 2,852,000us-gaap_StockIssuedDuringPeriodSharesNewIssues        
Purchase price per share $ 7.00us-gaap_SaleOfStockPricePerShare        
Issuance of common shares, net of issuance expenses 18,000us-gaap_ProceedsFromIssuanceOfCommonStock    17,956us-gaap_ProceedsFromIssuanceOfCommonStock     
Number of ordinary shares called by warrants   27,582us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights      
Exercise price   $ 0.48us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1      
Proceeds from exercise of warrants   $ 38us-gaap_ProceedsFromWarrantExercises      
Exercise of over-allotment option [Member]          
Statement [Line Items]          
Shares issued during period, issued for cash 372,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementScenarioAxis
= attuf_ExerciseOfOverAllotmentOptionMember
       
Warrant [Member]          
Statement [Line Items]          
Exercise of warrants, shares   78,828us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
     
Stock Option Plans [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Exercise price of options, as a percent of fair market value of ordinary shares   100.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
/ us-gaap_PlanNameAxis
= attuf_StockOptionPlansMember
     
Purchase price of common stock, for 10% or greater interest shareholders, expressed as a percentage of its fair market value.   110.00%attuf_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockTenPercentInterestShareholderPercent
/ us-gaap_PlanNameAxis
= attuf_StockOptionPlansMember
     
Number of ordinary shares reserved for issuance in stock option plans   3,250,625us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= attuf_StockOptionPlansMember
     
Additional number of ordinary shares reserved for issuance in stock option plans         50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
/ us-gaap_PlanNameAxis
= attuf_StockOptionPlansMember
Options available for future grants   50,845us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= attuf_StockOptionPlansMember
     
Non Qualified Options [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Exercise price of options, as a percent of fair market value of ordinary shares   75.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
/ us-gaap_PlanNameAxis
= attuf_NonQualifiedOptionsMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember