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Interest Expense on Convertible Notes (Detail) - USD ($)
 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Schedule Of Debt Instrument Interest Expense [Line Items]    
Interest expense $ 82,905 $ 542,296
Interest expense, debt 82,905 182,642
Convertible Notes Payable    
Schedule Of Debt Instrument Interest Expense [Line Items]    
Interest expense 0 171,027
Amortization of loan fees and discount 0 188,627
Interest expense, debt $ 0 $ 359,654