COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]
Costs incurred on uncompleted contracts	$ 53,595	$ 37,899
Estimated earnings, thereon	6,847	2,665
Total	60,442	40,564
Less: billings to date	38,662	17,881
Net	21,780	22,683
Schedule of Costs and Estimated Earnings on Uncompleted Contracts Included in Condensed Consolidated Balance Sheets [Abstract]
Costs and estimated profits in excess of billings	32,514	26,915
Billings in excess of costs and estimated profits	(10,696)	(4,249)
Translation Adjustment	(38)	17
Net	$ 21,780	$ 22,683