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Note 4 - Contracts in Progress (Tables)

6 Months Ended

Jun. 30, 2015

Notes Tables

Schedule Of Cost And Estimated Earnings In Excess Of Billings [Table Text Block]

		June 30, 2015				December 31, 2014

Costs incurred on contracts in progress		$	4,888,161			$	4,250,300
Estimated earnings			5,781,456				4,541,377
			10,669,617				8,791,677
Billings to date			(7,740,478	)			(7,621,523	)
		$	2,929,139			$	1,170,154
Included in accompanying balance sheets under the following captions:
Costs and estimated earnings in excess of billings on contracts in progress		$	3,329,357			$	2,498,662

Billings in excess of costs and estimated earnings on contracts in progress		$	(400,218	)		$	(1,328,508	)