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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT (Narrative) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
item
Dec. 31, 2014
USD ($)
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Number of Instruments Held | item 7  
Level 1 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities $ 2,035 $ 2,362
Level 2 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities
Level 3 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities
Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative notional amount $ 10,500  
Derivative, term of contract 7 months  
Monthly notional amount $ 1,500  
Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset   $ 2,564
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 $ 1,063 $ 2,564
Designated as Hedging Instrument [Member] | Level 3 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset
Designated as Hedging Instrument [Member] | Other Current Assets [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset $ 1,063 $ 1,580
Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset   984
Cost of Sales [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain recognized in income on derivatives $ 1,616 $ 39