Accrued Liabilities - Summary of Accrued Liabilities (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Accrued Liabilities Current [Abstract]
Payroll and benefits	$ 1,086,885	$ 789,852
Other	621,500	305,000
Total	$ 1,708,385	$ 1,094,852