Note 4 - Contracts in Progress (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

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

	March 31, 2016			December 31, 2015
Costs incurred on contract in progress	$	7,801,867		$	7,695,281
Estimated earnings		7,262,926			7,635,114
		15,064,793			15,330,395
Billings to date		(10,768,756	)		(10,695,377	)
	$	4,296,037		$	4,635,018
Included in accompanying balance sheets under the following captions:
Costs and estimated earnings in excess of billings on contracts in progress	$	4,325,998		$	4,635,018
Billings in excess of costs and estimated earnings on contracts in progress	$	(29,661	)		---
	$	4,296,037		$	4,635,018