Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Option Activity (Detail)

v3.8.0.1
Stockholders' Equity - Stock Option Activity (Detail) - Service-Based Vesting Condition Options [Member] - USD ($)
12 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding at November 30, 2016 1,142,010  
Granted 25,000  
Exercised (33,031)  
Expired/forfeited (107,000)  
Outstanding at November 30, 2017 1,026,979 1,142,010
Exercisable at November 30, 2017 987,811  
Outstanding at November 30, 2016, Weighted Average Exercise Price $ 2.36  
Granted, Weighted Average Exercise Price 6.95  
Exercised, Weighted Average Exercise Price 1.96  
Expired/forfeited, Weighted Average Exercise Price 2.19  
Outstanding at November 30, 2017, Weighted Average Exercise Price 2.50 $ 2.36
Exercisable at November 30, 2017, Weighted Average Exercise Price $ 2.41  
Outstanding at November 30, 2016, Weighted Average Remaining Contractual Term (Years) 4 years 5 months 23 days 4 years 11 months 27 days
Exercisable at November 30, 2017, Weighted Average Remaining Contractual Term (Years) 4 years 4 months 2 days  
Outstanding at November 30, 2016 $ 2,157,112  
Granted 27,750  
Exercised 108,349  
Expired/forfeited 628,280  
Outstanding at November 30, 2017 5,706,107 $ 2,157,112
Exercisable at November 30, 2017 $ 5,580,178