Note 3 - Uncompleted Contracts (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Cost and Estimated Earnings In Excess of Billings [Table Text Block]

	2012			2011
Costs incurred on uncompleted contracts	$	10,733,663		$	11,253,624
Estimated earnings		9,465,412			10,120,760
		20,199,075			21,374,384
Billings to date		(17,944,876	)		(19,650,770	)
	$	2,254,199		$	1,723,614

	2012			2011
Included in accompanying balance sheets
Under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	$	2,730,104		$	3,410,824
Billings in excess of costs and estimated earnings on uncompleted contracts	$	(475,905	)	$	(1,687,210	)