Quarterly report pursuant to sections 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
 9 Months Ended 0 Months Ended
Feb. 28, 2014
Feb. 28, 2014
Stock Options
Consultant
Apr. 11, 2014
Subsequent Event
Mar. 06, 2014
Subsequent Event
Mar. 17, 2014
Subsequent Event
Stock Options
Consultant
Subsequent Event [Line Items]          
Principal amount of debt repaid at maturity     $ 500,000 $ 250,000  
Accrued interest payable     $ 37,397 $ 2,396  
Notice to terminate, number of tendered days         30 days
Stock options , shares granted 18,114,156 305,000     305,000
Stock options granted, exercise price $ 0.74 $ 0.75     $ 0.75
Stock options, number of shares vested   50,000     140,000
Stock options, number of shares expected to vest         15,000
Stock options, number of shares forfeited         150,000
Annual interest rate     15.00%    
Common stock fixed price $ 0.75   $ 0.50    
Common stock issued     74,795