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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Inputs, Level 1 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities $ 358 $ 1,897
Total Securities 358 1,897
Fair Value, Inputs, Level 1 [Member] | Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset
Fair Value, Inputs, Level 2 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities
Total Securities 1,019
Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset 1,019
Fair Value, Inputs, Level 3 [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Trading securities
Total Securities
Fair Value, Inputs, Level 3 [Member] | Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Cost of Sales [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain recognized in income on derivatives 399 385
Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative notional amount $ 15,000  
Derivative, term of contract 10 months  
Monthly notional amount $ 1,500  
Other Current Assets [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset  
Other Current Liabilities [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset   $ 1,019