DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 3) - USD ($) $ in Thousands  | 
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017  | 
Sep. 30, 2016  | 
Sep. 30, 2017  | 
Sep. 30, 2016  | 
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| Amount of Gain or (Loss) Recognized in Income | $ (235) | $ 94 | $ (348) | $ (512) | 
| Sell AUD/Buy USD Fwd Contract [Member] | ||||
| Location of Gain or (Loss) Recognized in Income | Other Inc/Exp | Other Inc/Exp | Other Inc/Exp | Other Inc/Exp | 
| Amount of Gain or (Loss) Recognized in Income | $ (11) | $ (9) | $ (29) | $ (36) | 
| Sell CAD/Buy USD Fwd Contract [Member] | ||||
| Location of Gain or (Loss) Recognized in Income | Other Inc/Exp | Other Inc/Exp | Other Inc/Exp | Other Inc/Exp | 
| Amount of Gain or (Loss) Recognized in Income | $ (224) | $ 103 | $ (319) | $ (476) | 
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The caption on the income statement reflecting the gain (loss) on derivative instruments not designated as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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