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GOODWILL (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]      
Goodwill impairment loss $ 879,000us-gaap_GoodwillImpairmentLoss [1] $ 3,093,000us-gaap_GoodwillImpairmentLoss [1] $ 672,000us-gaap_GoodwillImpairmentLoss
Accumulated impairment loss 6,424,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss 5,545,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss 2,452,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Certain Reporting Units [Member]      
Goodwill [Line Items]      
Goodwill impairment loss 900,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitsMember		 3,100,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitsMember		  
Term used for projected net cash flows 3 years    
Discount rate 16.90%us-gaap_FairValueInputsDiscountRate
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitsMember		    
Growth rate 0.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitsMember		    
Certain Reporting Unit One [Member]      
Goodwill [Line Items]      
Goodwill impairment loss   $ 3,100,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitMember		  
Term used for projected net cash flows   3 years  
Discount rate   17.50%us-gaap_FairValueInputsDiscountRate
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitMember		  
Growth rate   0.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= itrn_CertainReportingUnitMember		  
[1] During 2014, 2013 and 2012, the Company recorded an amount of US$ 879,000 US$ 3,093,000 and US$ 672,000, respectively, as impairment with respect to goodwill.