Property and Equipment, Net, and Other Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Depreciation	$ 113,444	$ 122,296	$ 228,690	$ 231,212
Depreciation reflected in cost of revenue	42,224	$ 38,848	83,299	$ 48,265
Capital lease assets, net	295,419		295,419		$ 347,135
Capital lease assets, accumulated depreciation	$ 204,679		$ 204,679		$ 152,962