COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED CONTRACTS (Tables)

12 Months Ended

Dec. 31, 2016

Contractors [Abstract]

Schedule of costs and estimated earnings in excess of billings on uncompleted contracts (unbilled)

At December 31, 2016, costs and estimated earnings in excess of billings on uncompleted contracts (unbilled) consist of:

	U.S. Government		Commercial		Total
Costs incurred on uncompleted contracts	$	341,003,461	$	153,898,425	$	494,901,886
Estimated earnings		39,638,231		58,346,518		97,984,749
		380,641,692		212,244,943		592,886,635
Less billings to date		331,277,942		162,145,504		493,423,446
Costs and estimated earnings in excess of billings on uncompleted contracts	$	49,363,750	$	50,099,439	$	99,463,189
At December 31, 2015, costs and estimated earnings in excess of billings on uncompleted contracts (unbilled) consist of:
	U.S. Government		Commercial		Total
Costs incurred on uncompleted contracts	$	349,458,368	$	123,078,356	$	472,536,724
Estimated earnings		62,718,792		49,539,299		112,258,091
		412,177,160		172,617,655		584,794,815
Less billings to date		353,601,903		128,745,963		482,347,866
Costs and estimated earnings in excess of billings on uncompleted contracts	$	58,575,257	$	43,871,692	$	102,446,949

Schedule of costs and estimated earnings in excess of billings on uncompleted contracts included in balance sheet

The above amounts are included in the accompanying balance sheets under the following captions at December 31, 2016 and 2015:

	2016			2015
Costs and estimated earnings in excess of billings on uncompleted contracts	$	99,578,526		$	102,622,387
Billings in excess of costs and estimated earnings on uncompleted contracts		(115,337	)		(175,438	)
Totals	$	99,463,189		$	102,446,949