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Convertible Notes Payable (Parenthetical) (Detail) - USD ($)
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Jan. 31, 2014
Debt Instrument [Line Items]      
Debt discount $ 1,060,401 $ 1,305,435  
9% Senior Subordinated Convertible Notes due February 15, 2016      
Debt Instrument [Line Items]      
Debt, interest rate 9.00%    
Debt discount $ 62,682 $ 137,393 $ 149,478
Debt instrument, maturity date Feb. 15, 2016    
8% Convertible Note Payable to NNA due March 28, 2019      
Debt Instrument [Line Items]      
Debt, interest rate 8.00%    
Debt discount $ 985,255