Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Option Activity (Detail)

v3.10.0.1
Stockholders' Equity - Stock Option Activity (Detail) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2018
Aug. 31, 2017
Nov. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted 0 22,500 51,636 22,500  
Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Outstanding at November 30, 2017     1,026,979    
Granted     51,636    
Exercised     (63,750)    
Expired/forfeited     (13,500)    
Outstanding at August 31, 2018 1,001,365   1,001,365   1,026,979
Exercisable at August 31, 2018 961,111   961,111    
Outstanding at November 30, 2017     $ 2.50    
Granted, Weighted Average Exercise Price     7.85    
Exercised, Weighted Average Exercise Price     2.68    
Expired/forfeited, Weighted Average Exercise Price     2.18    
Outstanding at August 31, 2018, Weighted Average Exercise Price $ 2.77   2.77   $ 2.50
Exercisable at August 31, 2018, Weighted Average Exercise Price $ 2.58   $ 2.58    
Outstanding at August 31, 2018 Weighted Average Remaining Contractual Term (Years)     4 years 2 months 19 days   4 years 5 months 23 days
Exercisable at August 31, 2018, Weighted Average Remaining Contractual Term (Years)     4 years 2 months 1 day    
Outstanding at November 30, 2017     $ 5,706,107    
Granted     29,774    
Exercised     343,935    
Expired/forfeited     84,435    
Outstanding at August 31, 2018 $ 5,664,941   5,664,941   $ 5,706,107
Exercisable at August 31, 2018 $ 5,619,667   $ 5,619,667