Commitments and Contingencies - Additional Information (Detail) - USD ($)	Jun. 30, 2015	Aug. 02, 2013
Loss Contingencies [Line Items]
Legal settlement		$ 18,372,819
Brokerage fee obligations		1,118,878
Acquisition amount owed		$ 17,253,941
Litigation settlement amount	$ 2,118,878
Minimum potential range contingency loss	0
Maximum potential range contingency loss	2,118,878
Second Claim [Member]
Loss Contingencies [Line Items]
Litigation settlement amount	$ 1,000,000