Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity - Stock Option Activity for Options (Detail)

v2.4.0.8
Stockholder's Equity - Stock Option Activity for Options (Detail) (USD $)
 3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2014
Aug. 31, 2014
Aug. 31, 2014
Performance and Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Performance and Market-Based Vesting Condition Options [Member]
Aug. 31, 2014
Service-Based Vesting Condition Options [Member]
Nov. 30, 2013
Service-Based Vesting Condition Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Outstanding Shares, Beginning Balance     640,000   1,112,260  
Granted, Shares 0 0          
Exercised, Shares          (46,246)  
Expired/forfeited, Shares     (640,000)   (77,917)  
Outstanding Shares, Ending Balance        640,000 988,097 1,112,260
Exercisable Shares, Ending Balance          972,270  
Outstanding, Weighted Average Exercise Price, Beginning Balance     $ 1.74   $ 2.11  
Granted, Weighted Average Exercise Price              
Exercised, Weighted Average Exercise Price          $ 1.53  
Expired/forfeited, Weighted Average Exercise Price     $ 1.74   $ 2.15  
Outstanding, Weighted Average Exercise Price, Ending Balance        $ 1.74 $ 2.13 $ 2.11
Exercisable, Weighted Average Exercise Price, Ending Balance         $ 2.13  
Exercisable, Weighted Average Exercise Price, Ending Balance             
Outstanding, Weighted Average Remaining Contractual Term (Years), Beginning Balance        7 years 9 months 29 days 6 years 26 days 6 years 4 months 24 days
Exercisable, Weighted Average Remaining Contractual Term (Years), Ending Balance          6 years 1 month 2 days  
Outstanding, Aggregate Intrinsic Value, Beginning Balance       $ 70,000 $ 88,614  
Granted, Aggregate Intrinsic Value             
Exercised, Aggregate Intrinsic Value         48,237  
Expired/forfeited, Aggregate Intrinsic Value         62,492  
Outstanding, Aggregate Intrinsic Value, Ending Balance          807,333 88,614
Exercisable, Aggregate Intrinsic Value, Ending Balance          $ 794,730