Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Option Activity (Details)

v3.10.0.1
Stock-based Compensation - Option Activity (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2018
Feb. 28, 2018
May 31, 2018
Nov. 30, 2017
Nov. 30, 2016
Number of Options          
Beginning Balance, Outstanding (shares) 796,500 871,500 871,500 564,000  
Granted (shares) 0 7,500   307,500  
Exercised (shares) 0 0   0  
Cancelled or Forfeited (shares) 0 82,500   0  
Ending Balance, Outstanding (shares) 796,500 796,500 796,500 871,500 564,000
Weighted-Average Exercise Price          
Beginning Balance, Outstanding (usd per share) $ 3.26 $ 3.27 $ 3.27 $ 3.25  
Granted (usd per share)   3.15   3.30  
Cancelled or Forfeited (usd per share)   3.35      
Ending Balance, Outstanding (usd per share) $ 3.26 $ 3.26 $ 3.26 $ 3.27 $ 3.25
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]          
Weighted-Average Remaining Term (years)   6 years 5 years 9 months 18 days 6 years 5 years 9 months 18 days
Aggregate Intrinsic Value $ 0 $ 0 $ 0 $ 0 $ 0