NOTE 5 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts - (Details) (USD $)	Mar. 31, 2013
Notes to Financial Statements
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 488,000
Less: Billings in excess of costs and estimated earnings on uncompleted contracts
Total Costs and estimated earnings in excess of billings on uncompleted contracts	$ 488,000