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COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]    
Costs incurred on uncompleted contracts $ 39,437 $ 49,133
Estimated profits, thereon 11,721 16,749
Total 51,158 65,882
Less: billings to date 37,449 54,701
Net 13,709 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 20,274 20,083
Billings in excess of costs and profits on uncompleted contracts (6,750) (8,840)
Translation adjustment 185 (62)
Net $ 13,709 $ 11,181