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Note 4 - Costs and Estimated Earnings on Uncompleted Contracts (Details) - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (USD $)
Sep. 30, 2014
Dec. 31, 2013
Note 4 - Costs and Estimated Earnings on Uncompleted Contracts (Details) - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Line Items]    
Costs incurred on uncompleted contracts $ 373,256,972 $ 321,552,523
Estimated earnings 94,444,959 126,285,484
Sub-total 467,701,931 447,838,007
Less billings to date 390,119,032 335,517,041
Costs and estimated earnings in excess of billings on uncompleted contracts 77,582,899 112,320,966
U.S. Government [Member]
    
Note 4 - Costs and Estimated Earnings on Uncompleted Contracts (Details) - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Line Items]    
Costs incurred on uncompleted contracts 290,924,522 259,050,407
Estimated earnings 57,658,304 95,590,879
Sub-total 348,582,826 354,641,286
Less billings to date 303,745,077 272,783,120
Costs and estimated earnings in excess of billings on uncompleted contracts 44,837,749 81,858,166
Commercial [Member]
    
Note 4 - Costs and Estimated Earnings on Uncompleted Contracts (Details) - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Line Items]    
Costs incurred on uncompleted contracts 82,332,450 62,502,116
Estimated earnings 36,786,655 30,694,605
Sub-total 119,119,105 93,196,721
Less billings to date 86,373,955 62,733,921
Costs and estimated earnings in excess of billings on uncompleted contracts $ 32,745,150 $ 30,462,800