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Computation of Diluted Earnings Per Share (Detail) - shares
3 Months Ended 9 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Incremental shares assumed issued on exercise of in the money 2,176,166 2,091,203 2,350,666 2,122,084
Warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Incremental shares assumed issued on exercise of in the money 22,000 162,398 128,500 175,035
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 1,111,111 1,666,666 1,111,111
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 0 275,000 0 275,000
Options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Incremental shares assumed issued on exercise of in the money 487,500 542,694 555,500 560,938