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Stockholder's Equity - Fair Value of Options Granted (Detail) (Service-Based Vesting Condition Options [Member])
3 Months Ended 9 Months Ended
Aug. 31, 2013
Aug. 31, 2013
Service-Based Vesting Condition Options [Member]
   
Weighted average values:    
Expected dividends 0.00% 0.00%
Expected volatility 108.75% 110.46%
Risk free interest rate 1.35% 1.15%
Expected life 5 years 5 years