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FAIR VALUE MEASUREMENT (Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Assets:    
Derivative financial instruments $ 159  
Liabilities:    
Derivative financial instruments   $ 74
Level 1 [Member]    
Assets:    
Derivative financial instruments  
Liabilities:    
Derivative financial instruments  
Level 2 [Member]    
Assets:    
Derivative financial instruments 159  
Liabilities:    
Derivative financial instruments   74
Level 3 [Member]    
Assets:    
Derivative financial instruments  
Liabilities:    
Derivative financial instruments