COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]
Costs incurred on uncompleted contracts	$ 36,331	$ 34,400
Estimated profits, thereon	14,493	13,119
Total	50,824	47,519
Less: billings to date	36,573	33,422
Net	14,251	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	18,389	22,045
Billings in excess of costs and profits on uncompleted contracts	(4,131)	(8,021)
Translation adjustment	(7)	73
Net	$ 14,251	$ 14,097