ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	$ (14)	$ (22)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	10,670	6,826
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax	39	105
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 10,709	$ 6,931