Accrued Liabilities (Detail) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Schedule of Accrued Liabilities [Line Items]
Interest	$ 789,856	$ 398,157
Rent	457,483	335,096
Payroll	250,594	127,635
Royalties	150,305	132,593
Real estate taxes	124,043	92,549
Board of director fees	62,500	31,000
Miscellaneous	2,497	44,090
Total accrued liabilities	$ 1,837,278	$ 1,161,120