Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Payment Of Commitment And Contingencies [Line Items]
Operating lease expense	$ 509,586	$ 352,670
Operating lease renewal option period	60 months
Minimum rentals to receive on sublease	$ 320,061
Liabilities incurred to defend lawsuits	$ 0	$ 0
Scottsdale [Member]
Payment Of Commitment And Contingencies [Line Items]
Operating lease period	66 months
Operating leases expiring period	2017-03
Texas [Member]
Payment Of Commitment And Contingencies [Line Items]
Operating lease period	84 months
Operating leases expiring period	2022-10