Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Additional Information (Detail)

v2.4.0.8
Related Party Transactions - Additional Information (Detail) (USD $)
 12 Months Ended
May 31, 2014
May 31, 2013
Related Party Transaction [Line Items]    
Payments on convertible notes payable $ 500,000  
Issuance of common stock shares for notes payable 5,695,000  
Common stock issued 55,753,311 30,908,292
Convertible notes, conversion price $ 0.75  
Interest expense related amortization 3,807,320 1,703,616
Note Payable 15% Due 2014
    
Related Party Transaction [Line Items]    
Payments on convertible notes payable 500,000  
Convertible notes, interest payable rate 15.00%  
Convertible notes, maturity date Apr. 11, 2014  
Issuance of common stock shares for notes payable 150,000  
Interest payable, per share of common stock $ 0.50  
Interest Expenses 64,700 10,300
Common stock issued 150,000  
Note Payable 5% Due 2015
    
Related Party Transaction [Line Items]    
Convertible notes, interest payable rate   5.00%
Convertible notes, maturity date   Oct. 16, 2015
Convertible notes issued, principal amount   1,000,000
Convertible notes, conversion price   $ 0.75
Common stock warrants issued   1,333,333
Common stock warrants, exercise price   2.00
Common stock warrants, expire date   Oct. 16, 2014
Convertible note, carrying value 540,000  
Interest expense related amortization $ 334,000 $ 207,000