Fair Value Measurements (Details) (Level 3 inputs, USD $)	Jun. 30, 2013	Dec. 31, 2012
Carrying Value | Loan Payable
Liabilities
Liabilities	$ 5,876,260
Carrying Value | Convertible Promissory Note
Assets
Assets	1,550,000
Carrying Value | Equipment Notes Receivable
Assets
Assets	8,308,035	3,306,391
Fair Value | Loan Payable
Liabilities
Liabilities	5,876,260
Fair Value | Convertible Promissory Note
Assets
Assets	1,550,000
Fair Value | Equipment Notes Receivable
Assets
Assets	$ 8,308,035	$ 3,306,391