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Note 4 - Uncompleted Contracts (Details) - Costs, Estimated Earnings, and Billings on Uncompleted Contracts (USD $)
Mar. 31, 2014
Dec. 31, 2013
Costs, Estimated Earnings, and Billings on Uncompleted Contracts [Abstract]    
Costs incurred on uncompleted contracts $ 1,126,244 $ 1,807,628
Estimated earnings 2,928,698 1,229,038
4,054,942 3,036,666
Billings to date (2,517,721) (1,711,587)
1,537,221 1,325,079
Cost and estimated earnings in excess of billings on uncompleted contracts 1,934,385 1,577,969
Billings in excess of costs and estimated earnings on uncompleted contracts $ (397,164) $ (252,890)