Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.3.0.814
Subsequent Events - Additional Information (Detail) - USD ($)
Oct. 01, 2015
Sep. 21, 2015
Aug. 31, 2015
Aug. 24, 2015
May. 31, 2015
Subsequent Event [Line Items]          
Short term convertible note, principal amount     $ 2,991,387   $ 1,634,458
Short-Term Convertible Notes | Restricted Shares          
Subsequent Event [Line Items]          
Conversion price, per share       $ 0.675  
Short-Term Convertible Notes | Common Stock Warrants | After Amendment          
Subsequent Event [Line Items]          
Exercise price of warrants, per share       $ 0.675  
Subsequent Event          
Subsequent Event [Line Items]          
Exercise price of warrants, per share $ 1.00        
Warrants to purchase common shares, shares 6,300,000        
Subsequent Event | Minimum          
Subsequent Event [Line Items]          
Warrants, expiration date 2015-10        
Subsequent Event | Maximum          
Subsequent Event [Line Items]          
Warrants, expiration date 2016-01        
Subsequent Event | Extended Term of Expiration Period of Warrants | Minimum          
Subsequent Event [Line Items]          
Warrants, expiration date 2016-10        
Subsequent Event | Extended Term of Expiration Period of Warrants | Maximum          
Subsequent Event [Line Items]          
Warrants, expiration date 2017-01        
Subsequent Event | Short-Term Convertible Notes          
Subsequent Event [Line Items]          
Exercise price of warrants, per share   $ 0.675      
Short term convertible note, principal amount   $ 2,700,000      
Number of shares of common stock issued to participants in exchange offer   4,095,099      
Warrants to purchase common shares, shares   718,328      
Subsequent Event | Short-Term Convertible Notes | Common Stock Warrants          
Subsequent Event [Line Items]          
Exercise price of warrants, per share   $ 0.675