COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED CONTRACTS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]
Costs incurred on uncompleted contracts	$ 321,552,523	$ 257,524,854
Estimated earnings	126,285,484	109,102,921
Sub-total	447,838,007	366,627,775
Less billings to date	335,517,041	258,374,784
Costs and estimated earnings in excess of billings on uncompleted contracts	112,320,966	108,252,991
Costs and estimated earnings in excess of billings on uncompleted contracts	112,597,136	108,909,844
Billings in excess of costs and estimated earnings on uncompleted contracts	(276,170)	(656,853)
Costs and estimated earnings in excess of billings on uncompleted contracts	112,320,966	108,252,991
Costs and estimated earnings in excess of billings not expected to be collected within one year	30,000,000
Decrease in estimated gross profits on contracts due to revisions	3,700,000	1,300,000	3,000,000
U.S. Government [Member]
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]
Costs incurred on uncompleted contracts	259,050,407	214,888,101
Estimated earnings	95,590,879	85,320,636
Sub-total	354,641,286	300,208,737
Less billings to date	272,783,120	215,743,090
Costs and estimated earnings in excess of billings on uncompleted contracts	81,858,166	84,465,647
Costs and estimated earnings in excess of billings on uncompleted contracts	81,858,166	84,465,647
Commercial [Member]
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]
Costs incurred on uncompleted contracts	62,502,116	42,636,753
Estimated earnings	30,694,605	23,782,285
Sub-total	93,196,721	66,419,038
Less billings to date	62,733,921	42,631,694
Costs and estimated earnings in excess of billings on uncompleted contracts	30,462,800	23,787,344
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 30,462,800	$ 23,787,344