Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Depreciation and leasehold improvement amortization expense	$ 371,805	$ 147,916	$ 728,828	$ 299,409
Total costs of leased assets	$ 355,801		355,801		$ 146,213
Accumulated depreciation and amortization of leased assets			$ 155,022		$ 88,220