Notes Payable - Summary of Components of Total Debt (Detail) - USD ($) |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Debt Payable | $ 123,196,689 | $ 109,544,049 |
| M3 [Member] | ||
| Debt Instrument [Line Items] | ||
| Other Loans Payable | 2,134,018 | |
| Other Loans-Vehicles [Member] | ||
| Debt Instrument [Line Items] | ||
| Other Loans Payable | 4,402 | |
| Credit Agreement Morgan Stanley [Member] | ||
| Debt Instrument [Line Items] | ||
| Note Payable To Bank | 121,493,646 | 112,500,000 |
| Credit Agreement Morgan Stanley [Member] | PIK Fee [Member] | ||
| Debt Instrument [Line Items] | ||
| Note Payable To Bank | 1,711,940 | 593,750 |
| Credit Agreement Morgan Stanley [Member] | Net Profits Interest Agreement [Member] | ||
| Debt Instrument [Line Items] | ||
| Net Profits Interest | $ (2,142,915) | $ (3,554,103) |