Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Option Activity for Options with Service-Based Vesting Conditions (Detail)

v3.5.0.2
Stockholders' Equity - Stock Option Activity for Options with Service-Based Vesting Conditions (Detail) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2016
Aug. 31, 2015
Nov. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted 35,000 22,500 204,729 22,500  
Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Outstanding at November 30, 2015     968,930    
Granted     204,729    
Exercised     (23,399)    
Expired/forfeited     (8,250)    
Outstanding at August 31, 2016 1,142,010   1,142,010   968,930
Exercisable at August 31, 2016 995,740   995,740    
Outstanding at November 30, 2015, Weighted Average Exercise Price     $ 2.17    
Granted, Weighted Average Exercise Price     3.19    
Exercised, Weighted Average Exercise Price     1.72    
Expired/forfeited, Weighted Average Exercise Price     2.18    
Outstanding at August 31, 2016, Weighted Average Exercise Price $ 2.36   2.36   $ 2.17
Exercisable at August 31, 2016, Weighted Average Exercise Price $ 2.24   $ 2.24    
Outstanding at August 31, 2016, Weighted Average Remaining Contractual Term (Years)     5 years 2 months 27 days   5 years 4 days
Exercisable at August 31, 2016, Weighted Average Remaining Contractual Term (Years)     4 years 8 months 9 days    
Outstanding at November 30, 2015     $ 1,095,525    
Granted     155,830    
Exercised     51,384    
Expired/forfeited     14,565    
Outstanding at August 31, 2016 $ 1,814,509   1,814,509   $ 1,095,525
Exercisable at August 31, 2016 $ 1,704,556   $ 1,704,556