XML 15 R25.htm IDEA: XBRL DOCUMENT v3.3.0.814
Note 4 - Costs, Estimated Earnings, and Billings on Uncompleted Contracts (Details) - USD ($)
Sep. 30, 2015
Dec. 31, 2014
Costs incurred on contracts in progress $ 8,242,038 $ 4,250,300
Estimated earnings 9,052,783 4,541,377
Total 17,294,821 8,791,677
Billings to date (15,535,877) (7,621,523)
Cost in excess of billing, net 1,758,944 1,170,154
Included in accompanying balance sheets under the following captions:    
Costs and estimated earnings in excess of billings on contracts in progress 2,511,970 2,498,662
Billings in excess of costs and estimated earnings on contracts in progress $ (753,026) $ (1,328,508)