Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Option Activity (Detail)

v3.19.2
Stockholders' Equity - Stock Option Activity (Detail) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2019
May 31, 2018
May 31, 2019
May 31, 2018
Nov. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted     1,500    
Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Outstanding at November 30, 2018     1,001,365    
Granted 1,500 51,636 1,500 51,636  
Exercised     (2,500)    
Expired/forfeited     (7,500)    
Outstanding at May 31, 2019 992,865   992,865   1,001,365
Exercisable at May 31, 2019 969,821   969,821    
Outstanding at November 30, 2018, Weighted Average Exercise Price     $ 2.77    
Granted, Weighted Average Exercise Price     7.04    
Exercised, Weighted Average Exercise Price     2.28    
Expired/forfeited, Weighted Average Exercise Price     2.22    
Outstanding at May 31, 2019, Weighted Average Exercise Price $ 2.79   2.79   $ 2.77
Exercisable at May 31, 2019, Weighted Average Exercise Price $ 2.69   $ 2.69    
Outstanding, Weighted Average Remaining Contractual Term (Years)     3 years 6 months 25 days   3 years 11 months 19 days
Exercisable at May 31, 2019, Weighted Average Remaining Contractual Term (Years)     3 years 6 months 18 days    
Outstanding at November 30, 2018     $ 4,580,967    
Granted     990    
Exercised     14,175    
Expired/forfeited     41,075    
Outstanding at May 31, 2019 $ 4,889,909   4,889,909   $ 4,580,967
Exercisable at May 31, 2019 $ 4,868,182   $ 4,868,182