Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Depreciation and leasehold improvement amortization expense	$ 357,924	$ 174,390	$ 1,086,752	$ 473,799
Total costs of leased assets	$ 373,048		373,048		$ 146,213
Accumulated depreciation and amortization of leased assets			$ 188,179		$ 88,220