Costs and Estimated Earnings on Uncompleted Contracts (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Summary of costs and estimated earnings on uncompleted contracts
Costs incurred on uncompleted contracts	$ 735,025	$ 177,529
Provision for loss on uncompleted contracts	10,177	6,680
Estimated income (loss)	(25,249)	6,156
Cost on uncompleted contracts, net	719,953	190,365
Less: billings to date	(422,582)	(223,678)
Cost in excess of billing on uncompleted contracts, net	$ 297,371	$ (33,313)