COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Tables)

3 Months Ended

Mar. 31, 2014

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

	March 31, 2014
	U.S
	Government	Commercial	Total

Costs incurred on uncompleted
contracts	$270,605,597	$68,163,669	$338,769,266
Estimated earnings	99,151,468	32,278,970	131,430,438
Sub-total	369,757,065	100,442,639	470,199,704
Less billings to date	281,858,400	69,315,449	351,173,849
Costs and estimated earnings
in excess of billings on
uncompleted contracts	$87,898,665	$31,127,190	$119,025,855

	December 31, 2013
	U.S.
	Government	Commercial	Total
Costs incurred on uncompleted
contracts	$259,050,407	$62,502,116	$321,552,523
Estimated earnings	95,590,879	30,694,605	126,285,484
Sub-total	354,641,286	93,196,721	447,838,007
Less billings to date	272,783,120	62,733,921	335,517,041
Costs and estimated earnings in excess of billings on uncompleted contracts	$81,858,166	$30,462,800	$112,320,966

The above amounts are included in the accompanying balance sheets under the following captions at March 31, 2014 and December 31, 2013:

	March 31, 2014	December 31, 2013
Costs and estimated earnings in excess of billings on
uncompleted contracts	$ 119,205,553	$ 112,597,136
Billings in excess of costs and estimated earnings on
uncompleted contracts	(179,698)	(276,170)

Totals	$ 119,025,855	$ 112,320,966