Quarterly report pursuant to Section 13 or 15(d)

Stock Options - Stock Option Activity for Options (Detail)

v2.4.0.8
Stock Options - Stock Option Activity for Options (Detail) (USD $)
 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Feb. 28, 2014
Service-Based Vesting Condition Options [Member]
Nov. 30, 2013
Service-Based Vesting Condition Options [Member]
Feb. 28, 2014
Performance and Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Performance and Market-Based Vesting Condition Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Outstanding Shares, Beginning Balance     1,112,260   640,000  
Granted, Shares 0            
Exercised, Shares 0 0          
Expired/forfeited, Shares     (36,667)      
Expired/forfeited, Shares         (600,000)  
Outstanding at February 28, 2014, Shares     1,075,593 1,112,260 40,000 640,000
Exercisable at February 28, 2014, Shares     987,061       
Outstanding at November 30, 2013, Weighted Average Exercise Price     $ 2.11   $ 1.74  
Granted, Weighted Average Exercise Price              
Exercised, Weighted Average Exercise Price              
Expired/forfeited, Weighted Average Exercise Price     $ 2.18      
Expired/forfeited, Weighted Average Exercise Price         $ 1.72  
Outstanding at February 28, 2014, Weighted Average Exercise Price     $ 2.11 $ 2.11 $ 2.05 $ 1.74
Exercisable at February 28, 2014, Weighted Average Exercise Price     $ 2.09      
Exercisable at February 28, 2014, Weighted Average Exercise Price             
Outstanding at February 28, 2014, Weighted Average Remaining Contractual Life (Years)     6 years 3 months 26 days 6 years 4 months 24 days 5 years 4 days 7 years 9 months 29 days
Exercisable at February 28, 2014, Weighted Average Remaining Contractual Life (Years)     6 years 5 months 5 days       
Outstanding at November 30, 2013, Aggregate Intrinsic Value     $ 88,614     $ 70,000
Granted, Aggregate Intrinsic Value             
Exercised, Aggregate Intrinsic Value             
Expired/forfeited, Aggregate Intrinsic Value     9,475      
Outstanding at February 28, 2014, Aggregate Intrinsic Value     343,927 88,614 9,200  
Exercisable at February 28, 2014, Aggregate Intrinsic Value     $ 333,776