Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Property Plant And Equipment [Abstract]
Depreciation and leasehold improvement amortization expense	$ 357,023	$ 151,493
Total costs of leased assets	322,573	146,213
Accumulated depreciation and amortization of leased assets	$ 115,520	$ 88,220