Computation of Diluted Earnings Per Share (Detail) - shares	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	2,258,666	0	2,308,666	0
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	104,500	0	114,500	0
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	1,666,666	0	1,666,666	0
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	487,500	0	527,500	0