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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative notional amount $ 28,500,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
 
Derivative, term of contract 19 months  
Monthly notional amount 1,500,000itrn_DerivativeMonthlyNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
 
Designated as Hedging Instrument [Member] | Level 1 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset      
Designated as Hedging Instrument [Member] | Level 2 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset 2,564,000us-gaap_DerivativeAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
568,000us-gaap_DerivativeAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
Designated as Hedging Instrument [Member] | Level 3 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset      
Designated as Hedging Instrument [Member] | Other Assets [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset 2,564,000us-gaap_DerivativeAssets
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
 
Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative liability   (568,000)us-gaap_DerivativeLiabilities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
Cost of Sales [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in income on derivatives $ 68,000us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
$ (295,000)us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember