Notes Payable - Summary of Components of Total Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Debt [Line Items]
Total debt	$ 89,424,313	$ 48,245,673
Original Issuance Discount - ASD	(3,000,000)
ASD Credit Agreement [Member]
Debt [Line Items]
Total debt	50,000,000	50,000,000
Original Issuance Discount - ASD	(1,235,294)	(2,294,118)
PIK Contingent Interest Expense [Member]
Debt [Line Items]
Total debt	2,530,050	500,000
A&R Credit Agreement-February 2013 [Member]
Debt [Line Items]
Total debt	25,000,000
Termination Fee - A&R [Member]
Debt [Line Items]
Total debt	6,784,626
Termination Fee Debt Discount - A&R	(3,940,659)
PIK Interest Fee-ASD [Member]
Debt [Line Items]
Total debt	375,000
PIK Interest - A&R [Member]
Debt [Line Items]
Total debt	2,186,037
A&R Credit Agreement -December 2013 [Member]
Debt [Line Items]
Total debt	7,500,000
Other loans - related party [Member]
Debt [Line Items]
Total debt	205,314
Other loans - vehicles [Member]
Debt [Line Items]
Total debt	$ 19,239	$ 39,791