Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Option Activity (Detail)

v3.20.2
Stockholders' Equity - Stock Option Activity (Detail) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2019
May 31, 2020
May 31, 2019
Nov. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted 1,500 44,969 1,500  
Service-Based Vesting Condition Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at November 30, 2018   1,089,774    
Granted   44,969    
Exercised   (20,000)    
Outstanding at May 31, 2020   1,114,743   1,089,774
Exercisable at May 31, 2020   1,018,873    
Outstanding at November 30, 2018, Weighted Average Exercise Price   $ 3.30    
Granted, Weighted Average Exercise Price   7.26    
Exercised, Weighted Average Exercise Price   2.05    
Expired/forfeited, Weighted Average Exercise Price   3.49    
Exercisable at May 31, 2020, Weighted Average Exercise Price   $ 3.11    
Outstanding, Weighted Average Remaining Contractual Term (Years)   3 years 8 months 8 days   3 years 10 months 27 days
Exercisable at May 31, 2020, Weighted Average Remaining Contractual Term (Years)   3 years 2 months 12 days    
Outstanding at November 30, 2019   $ 4,648,111    
Granted   6,369    
Exercised   102,800    
Outstanding at May 31, 2020   4,409,680   $ 4,648,111
Exercisable at May 31, 2020   $ 4,404,284