Post-effective amendment to a registration statement that is not immediately effective upon filing

Property and Equipment, Net - Property and Equipment - Additional Information (Detail)

v3.3.1.900
Property and Equipment, Net - Property and Equipment - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Abstract]    
Depreciation expense $ 307,906 $ 366,979