Quarterly report pursuant to Section 13 or 15(d)

Allocation of Cash Proceeds Derivative Liability at Its Fair Value and Warrant at Its Relative Fair Value, with Residual Allocation of Host AVCP Note Agreement (Detail)

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Allocation of Cash Proceeds Derivative Liability at Its Fair Value and Warrant at Its Relative Fair Value, with Residual Allocation of Host AVCP Note Agreement (Detail) - USD ($)
3 Months Ended 6 Months Ended
Nov. 30, 2014
Nov. 30, 2015
Nov. 30, 2014
Debt Instrument [Line Items]      
Beginning Balance   $ 4,862,257  
Amortization Debt Discount $ 60,699 94,344 $ 60,699
Change in Fair Value $ 805,575 (646,505) $ 805,575
Conversion   (35,627)  
Ending Balance      
Warrants (equity allocation)      
Debt Instrument [Line Items]      
Beginning Balance   215,732  
Ending Balance      
Loss On Debt Extinguishment      
Debt Instrument [Line Items]      
Conversion   (584,177)  
Compound Embedded Derivative      
Debt Instrument [Line Items]      
Beginning Balance   2,008,907  
Change in Fair Value   (646,505)  
Conversion   (1,362,402)  
Ending Balance      
Common Stock Issued      
Debt Instrument [Line Items]      
Conversion   4,714,168  
AVCP Convertible note payable      
Debt Instrument [Line Items]      
Beginning Balance   2,637,618  
Amortization Debt Discount   94,344  
Conversion   $ (2,731,962)  
Ending Balance