COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]
Costs incurred on uncompleted contracts	$ 46,502	$ 49,133
Estimated profits, thereon	15,994	16,749
Total	62,496	65,882
Less: billings to date	44,667	54,701
Net	17,829	11,181
Schedule of costs and estimated earnings on uncompleted contracts included in balance sheet [Abstract]
Costs and estimated profits in excess of billings on uncompleted contracts	25,930	20,083
Billings in excess of costs and profits on uncompleted contracts	(8,106)	(8,840)
Translation adjustment	5	(62)
Net	$ 17,829	$ 11,181