Quarterly report pursuant to Section 13 or 15(d)

Private Securities Offerings - Additional Information (Detail)

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Private Securities Offerings - Additional Information (Detail) - USD ($)
 6 Months Ended 12 Months Ended
Nov. 30, 2015
May. 31, 2015
Sep. 21, 2015
Equity and Equity Units Offering Disclosure [Line Items]      
Convertible notes   $ 4,862,257  
Common stock, par value $ 0.001 $ 0.001  
Private Equity Offering      
Equity and Equity Units Offering Disclosure [Line Items]      
Common stock, par value $ 0.001    
Common stock shares purchased, percentage 50.00%    
Exercise price of warrants, per share $ 0.75    
Term of warrants 5 years    
Units sold at private equity offering 17,254,952    
Warrants to purchase common shares, shares 11,724,092    
Private Equity Offering | Warrants Issued      
Equity and Equity Units Offering Disclosure [Line Items]      
Warrants to purchase common shares, shares 8,627,450    
Private Equity Offering | Investor Warrants      
Equity and Equity Units Offering Disclosure [Line Items]      
Warrants to purchase common shares, shares 10,344,092    
Private Equity Offering | Placement Agent      
Equity and Equity Units Offering Disclosure [Line Items]      
Exercise price of warrants, per share $ 0.75    
Term of warrants 5 years    
Warrants to purchase common shares, shares 1,716,643    
Short-Term Convertible Notes | 6-Month Unsecured Convertible Promissory Notes      
Equity and Equity Units Offering Disclosure [Line Items]      
Convertible notes   $ 3,981,050  
Convertible note conversion price per share   $ 0.75 $ 0.675
Convertible notes term   6 months  
Convertible notes, interest rate   7.00%  
Common stock, par value   $ 0.001  
Short-Term Convertible Notes | 6-Month Unsecured Convertible Promissory Notes | Investor Warrants      
Equity and Equity Units Offering Disclosure [Line Items]      
Common stock, par value   $ 0.001  
Common stock shares purchased, percentage   20.00%  
Exercise price of warrants, per share   $ 0.75  
Term of warrants   5 years  
Warrants to purchase common shares, shares   1,061,586