Stockholders' Equity - Additional Information (Detail) - USD ($)		6 Months Ended
	Oct. 14, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016	Dec. 15, 2015	Apr. 29, 2013
Stockholders Equity Note [Line Items]
Common Stock, shares authorized		100,000,000		100,000,000
Restricted shares granted to agent		150,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 9.00	$ 1.1485
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 499,439
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 5 months 1 day
Interest Rate of From Notice of Redemption		10.00%
Preferred Stock, Redemption Amount		$ 60,000,000
Noncash Or PartNoncash Valuation of Warrant Liability Issued		2,922,222
Temporary Equity, Carrying Amount, Attributable to Parent		7,077,778		$ 7,077,778
Proceeds from Warrant Exercises		172,000	$ 0
Series A Preferred Stock [Member]
Stockholders Equity Note [Line Items]
Preferred Stock, Redemption Amount		$ 10,000,000
Private Placement
Stockholders Equity Note [Line Items]
Restricted shares granted to agent	1,111,111
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 9.00
Stock Issued During Period, Value, New Issues	$ 10,000,000
Preferred Stock, Liquidation Preference Per Share	$ 9.00
2010 Equity Incentive Plan
Stockholders Equity Note [Line Items]
Issuance of common stock for services (shares)		1,200,000
2013 Equity Incentive Plan
Stockholders Equity Note [Line Items]
Equity incentive plan, shares authorized for issuance						500,000
2015 Equity Incentive Plan
Stockholders Equity Note [Line Items]
Equity incentive plan, shares authorized for issuance		1,126,000			1,500,000
MEZZANINE [Member] | Series A Preferred Stock [Member]
Stockholders Equity Note [Line Items]
Temporary Equity, Carrying Amount, Attributable to Parent		$ 7,077,778