Warrants (Detail) - $ / shares	6 Months Ended
	Sep. 30, 2016	Oct. 14, 2015
Class of Warrant or Right [Line Items]
Exercise Price Per Share	$ 1.1485	$ 9.00
Warrant Exercise Price Range One 4.00 - 5.00
Class of Warrant or Right [Line Items]
Warrants outstanding	114,500
Weighted average remaining contractual life	1 year 3 months 22 days
Warrants exercisable	114,500
Weighted average exercise price per share	$ 4.45
Warrant Exercise Price Range One 4.00 - 5.00 | Maximum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	5.00
Warrant Exercise Price Range One 4.00 - 5.00 | Minimum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	$ 4.00
Warrant Exercise Price Range Two 9.00 - 10.00
Class of Warrant or Right [Line Items]
Warrants outstanding	1,776,666
Weighted average remaining contractual life	4 years 14 days
Warrants exercisable	1,776,666
Weighted average exercise price per share	$ 9.37
Warrant Exercise Price Range Two 9.00 - 10.00 | Maximum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	10.00
Warrant Exercise Price Range Two 9.00 - 10.00 | Minimum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	$ 9.00
Warrant Exercise Price Range Three 4.00 - 10.00
Class of Warrant or Right [Line Items]
Warrants outstanding	1,891,166
Weighted average remaining contractual life	3 years 10 months 17 days
Warrants exercisable	1,891,166
Weighted average exercise price per share	$ 9.07
Warrant Exercise Price Range Three 4.00 - 10.00 | Maximum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	10.00
Warrant Exercise Price Range Three 4.00 - 10.00 | Minimum [Member]
Class of Warrant or Right [Line Items]
Exercise Price Per Share	$ 4.00