ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accrued expenses [Abstract]
Sales commissions	$ 2,066	$ 2,824
Subcontracting labor	1,370	1,942
Salaries, bonuses and related benefits	17,587	15,672
Warranty accrual	2,718	3,659
Deferred revenue	0	4,500
Other	7,808	9,726
Accrued expenses	31,549	38,323
Schedule of warranty accrual account for the period from the acquisition date [Roll Forward]
Balance, beginning of year	3,659	6,032
Charges and costs accrued	761	2,892
Adjustments related to pre-existing warranties (including changes in estimates)	(1,063)	(1,208)
Less: Repair costs incurred	(544)	(2,932)
Less: Cash settlements	0	(1,000)
Currency translation	(95)	(125)
Balance, end of year	$ 2,718	$ 3,659