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Note 2 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Unrealized Gain (Loss) on Investments [Table Text Block]

		U.S. Government				Commerc ial				Total
Costs incurred on uncompleted contracts		$	349,458,368			$	123,078,356			$	472,536,724
Estimated earnings			62,718,792				49,539,299				112,258,091
			412,177,160				172,617,655				584,794,815
Less billings to date			353,601,903				128,745,963				482,347,866

Costs and estimated earnings in excess of billings on uncompleted contracts		$	58,575,257			$	43,871,692			$	102,446,949

		U.S. Government				Commercial				Total


Costs incurred on uncompleted contracts		$	299,871,583			$	90,272,545			$	390,144,128
Estimated earnings			56,708,610				39,773,983				96,482,593
			356,580,193				130,046,528				486,626,721
Less billings to date			313,441,471				94,324,761				407,766,232

Costs and estimated earnings in excess of billings on uncompleted contracts		$	43,138,722			$	35,721,767			$	78,860,489

Net Unbilled and Estimated Earnings [Table Text Block]

		2015				2014
Costs and estimated earnings in excess of billings on uncompleted contracts		$	102,622,387			$	79,054,139
Billings in excess of costs and estimated earnings on uncompleted contracts			(175,438	)			(193,650	)

Totals		$	102,446,949			$	78,860,489