COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]
Costs incurred on uncompleted contracts	$ 24,441	$ 34,400
Estimated profits, thereon	8,189	13,119
Total	32,630	47,519
Less: billings to date	18,269	33,422
Net	14,361	14,097
Schedule of Costs and Estimated Earnings on Uncompleted Contracts Included in Condensed Consolidated Balance Sheets [Abstract]
Costs and estimated profits in excess of billings on uncompleted contracts	16,836	22,045
Billings in excess of costs and estimated profits on uncompleted contracts	(2,474)	(8,021)
Translation adjustment	(1)	73
Net	$ 14,361	$ 14,097