COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Tables)

6 Months Ended

Jun. 30, 2013

Costs and estimated earnings in excess of billings on uncompleted contracts consist of:

	June 30, 2013
	U.S
	Government	Commercial	Total

Costs incurred on uncompleted
contracts	$237,662,363	$52,127,357	$289,789,720
Estimated earnings	88,824,737	27,420,732	116,245,469
Sub-total	326,487,100	79,548,089	406,035,189
Less billings to date	242,302,347	52,849,929	295,152,276
Costs and estimated earnings in excess of billings on uncompleted contracts	$84,184,753	$26,698,160	$110,882,913

	December 31, 2012
	U.S.
	Government	Commercial	Total
Costs incurred on uncompleted
contracts	$214,888,101	$42,636,753	$257,524,854
Estimated earnings	85,320,636	23,782,285	109,102,921
Sub-total	300,208,737	66,419,038	366,627,775
Less billings to date	215,743,090	42,631,694	258,374,784
Costs and estimated earnings in excess of billings on uncompleted contracts	$84,465,647	$23,787,344	$108,252,991

The above amounts are included in the accompanying balance sheets under the following captions at June 30, 2013 and December 31, 2012:

	June 30, 2013	December 31, 2012
Costs and estimated earnings in excess of billings on
uncompleted contracts	$ 111,303,474	$ 108,909,844
Billings in excess of costs and estimated earnings on
uncompleted contracts	(420,561)	(656,853)

Totals	$ 110,882,913	$ 108,252,991