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Computation of Diluted Earnings Per Share (Detail) - shares
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 3,207,116 4,821,982
Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 138,500 2,091,166
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 1,666,666
Convertible notes [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 499,000 0
Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 902,950 1,064,150