Annual report pursuant to Section 13 and 15(d)

Note 15 - Stock-based Compensation - Valuation Assumptions (Details)

v3.22.0.1
Note 15 - Stock-based Compensation - Valuation Assumptions (Details) - $ / shares
12 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Share-based Payment Arrangement, Option [Member]    
Expected dividends
Restricted Stock Units (RSUs) [Member]    
Risk free rate 0.30% 0.26%
Expected dividends 0.00% 0.00%
Expected volatility 92.00% 121.00%
Expected life (in years) (Year) 3 years 3 years
Exercise price (in dollars per share) $ 0 $ 0
Minimum [Member] | Share-based Payment Arrangement, Option [Member]    
Risk free rate 0.26% 0.00%
Expected volatility 80.00% 118.00%
Expected life (in years) (Year) 4 years 2 years
Market price of the Company’s common stock on date of grant (in dollars per share) $ 14.74 $ 1.90
Exercise price (in dollars per share) 14.90 1.90
Minimum [Member] | Restricted Stock Units (RSUs) [Member]    
Market price of the Company’s common stock on date of grant (in dollars per share) $ 20.9 $ 14.10
Maximum [Member] | Share-based Payment Arrangement, Option [Member]    
Risk free rate 0.64% 1.68%
Expected volatility 113.00% 144.00%
Expected life (in years) (Year) 5 years 5 years
Market price of the Company’s common stock on date of grant (in dollars per share) $ 20.94 $ 14.80
Exercise price (in dollars per share) 20.20 15.00
Maximum [Member] | Restricted Stock Units (RSUs) [Member]    
Market price of the Company’s common stock on date of grant (in dollars per share) $ 26.9 $ 15.80