Commitments and Contingencies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017 USD ($) ft²	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Area of lease property | ft²	7,580
Lease expiration date	Jun. 30, 2018
Total operating leases rent expense	$ 51,289	$ 45,180
Lease agreement allowances for tenant improvements		$ 46,390
Deferred rent included in accrued expenses	47,948
Non-cancellable future minimum operating lease payments	$ 131,684		$ 157,418