Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.0.814
Stockholder's Equity - Stock Option Activity for Options (Detail) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Nov. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted 0   0  
Service-Based Vesting Condition Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at November 30, 2014   997,266    
Granted   22,500    
Exercised   (27,500)    
Expired/forfeited   (15,836)    
Outstanding at August 31, 2015   976,430   997,266
Exercisable at August 31, 2015   953,924    
Outstanding at November 30, 2014, Weighted Average Exercise Price   $ 2.14    
Granted, Weighted Average Exercise Price   3.08    
Exercised, Weighted Average Exercise Price   1.97    
Expired/forfeited, Weighted Average Exercise Price   2.08    
Outstanding at August 31, 2015, Weighted Average Exercise Price   2.17   $ 2.14
Exercisable at August 31, 2015, Weighted Average Exercise Price   $ 2.15    
Outstanding at August 31, 2015, Weighted Average Remaining Contractual Term (Years)   5 years 2 months 27 days   5 years 10 months 2 days
Exercisable at August 31, 2015, Weighted Average Remaining Contractual Term (Years)   5 years 2 months 16 days    
Outstanding at November 30, 2014, Aggregate Intrinsic Value   $ 661,466    
Granted, Options   6,975    
Exercised, Options   29,475    
Expired/forfeited, Options   20,795    
Outstanding at August 31, 2015, Aggregate Intrinsic Value   1,192,403   $ 661,466
Exercisable at August 31, 2015, Aggregate Intrinsic Value   $ 1,184,149