Costs and Estimated Earnings on Uncompleted Contracts (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Costs and estimated earnings on uncompleted contracts
Costs incurred on uncompleted contracts	$ 10,384	$ 424,477
Estimated earnings	17,484	41
Cost on uncompleted contracts. net	27,868	424,518
Less: billings to date	(20,793)	(358,064)
Costs in excess of billings on uncompleted contracts, Net	$ 7,075	$ 66,454