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Computation of Diluted Earnings Per Share (Detail) - shares
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 4,821,982 582,248
Convertible Notes    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 0 50,431
Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 2,091,166 119,430
Preferred stock    
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
Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 1,064,150 412,387