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 6 Months Ended 12 Months Ended
May 31, 2018
May 31, 2017
May 31, 2018
May 31, 2017
Nov. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted 51,636 0 51,636 0  
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     (2,250)    
Expired/forfeited     (11,000)    
Outstanding at May 31, 2018 1,065,365   1,065,365   1,026,979
Exercisable at May 31, 2018 1,016,358   1,016,358    
Outstanding at November 30, 2017, Weighted Average Exercise Price     $ 2.50    
Granted, Weighted Average Exercise Price     7.85    
Exercised, Weighted Average Exercise Price     2.19    
Expired/forfeited, Weighted Average Exercise Price     2.10    
Outstanding at May 31, 2018, Weighted Average Exercise Price $ 2.77   2.77   $ 2.50
Exercisable at May 31, 2018, Weighted Average Exercise Price $ 2.57   $ 2.57    
Outstanding at May 31, 2018, Weighted Average Remaining Contractual Life (Years)     4 years 2 months 19 days   4 years 5 months 23 days
Exercisable at May 31, 2018, Weighted Average Remaining Contractual Life (Years)     4 years 1 month 20 days    
Outstanding at November 30, 2017     $ 5,706,107    
Granted     80    
Exercised     12,815    
Expired/forfeited     59,380    
Outstanding at May 31, 2018 $ 5,059,743   5,059,743   $ 5,706,107
Exercisable at May 31, 2018 $ 5,018,648   $ 5,018,648