COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED CONTRACTS (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Costs incurred on uncompleted Contracts	$ 494,901,886	$ 472,536,724
Estimated earnings	97,984,749	112,258,091
Sub-total	592,886,635	584,794,815
Less billings to date	493,423,446	482,347,866
Totals	99,463,189	102,446,949
US Government [Member]
Costs incurred on uncompleted Contracts	341,003,461	349,458,368
Estimated earnings	39,638,231	62,718,792
Sub-total	380,641,692	412,177,160
Less billings to date	331,277,942	353,601,903
Totals	49,363,750	58,575,257
Commercial [Member]
Costs incurred on uncompleted Contracts	153,898,425	123,078,356
Estimated earnings	58,346,518	49,539,299
Sub-total	212,244,943	172,617,655
Less billings to date	162,145,504	128,745,963
Totals	$ 50,099,439	$ 43,871,692