Computation of Diluted Earnings Per Share (Detail) - shares	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	733,000	457,249
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	199,500	19,251
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	0	50,967
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental shares assumed issued on exercise of in the money	533,500	387,031