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COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Details) (USD $)
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]      
Costs incurred on uncompleted contracts $ 305,972,306   $ 257,524,854
Estimated earnings 120,741,789   109,102,921
Sub-total 426,714,095   366,627,775
Less billings to date 315,417,455   258,374,784
Costs and estimated earnings in excess of billings on uncompleted contracts 111,296,640   108,252,991
Costs and estimated earnings in excess of billings on uncompleted contracts 111,766,149   108,909,844
Billings in excess of costs and estimated earnings on uncompleted contracts (469,509)   (656,853)
Costs and estimated earnings in excess of billings on uncompleted contracts 111,296,640   108,252,991
Decrease in estimated gross profits on contracts due to revisions 3,600,000 1,000,000  
U.S. Government [Member]
      
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]      
Costs incurred on uncompleted contracts 248,918,412   214,888,101
Estimated earnings 92,166,984   85,320,636
Sub-total 341,085,396   300,208,737
Less billings to date 257,362,913   215,743,090
Costs and estimated earnings in excess of billings on uncompleted contracts 83,722,483   84,465,647
Costs and estimated earnings in excess of billings on uncompleted contracts 83,722,483   84,465,647
Commercial [Member]
      
Costs and Estimated Earnings on Uncompleted Contracts [Line Items]      
Costs incurred on uncompleted contracts 57,053,894   42,636,753
Estimated earnings 28,574,805   23,782,285
Sub-total 85,628,699   66,419,038
Less billings to date 58,054,542   42,631,694
Costs and estimated earnings in excess of billings on uncompleted contracts 27,574,157   23,787,344
Costs and estimated earnings in excess of billings on uncompleted contracts $ 27,574,157   $ 23,787,344