Quarterly report [Sections 13 or 15(d)]

Note 16 - Stock-based Compensation (Details Textual)

v3.25.2
Note 16 - Stock-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
May 31, 2025
May 31, 2024
May 31, 2025
May 31, 2024
Jun. 17, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)     115,050    
Restricted Stock Units (RSUs) [Member]          
Share-Based Payment Arrangement, Expense $ 0.5 $ 0.4 $ 0.9 $ 0.9  
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)     78,886    
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 3.5   $ 3.5    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 1 month 6 days        
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares) 101,001        
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) 1,636        
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)     99,366    
Restricted Stock Units (RSUs) [Member] | Share-Based Payment Arrangement, Tranche One [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     33.33%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) $ 6   $ 6    
Restricted Stock Units (RSUs) [Member] | Share-Based Payment Arrangement, Tranche Two [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     33.33%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) 9   $ 9    
Restricted Stock Units (RSUs) [Member] | Share-Based Payment Arrangement, Tranche Three [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     33.33%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) $ 12   $ 12    
Restricted Stock Units (RSUs), Time-based [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)     46,400    
Restricted Stock Units (RSUs), Performance-Based [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)     32,486    
Restricted Stock Units (RSUs), Excluding Time-based Units [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)     600,000    
Share-Based Payment Arrangement, Option [Member]          
Share-Based Payment Arrangement, Expense $ 0.3 0.5 $ 0.7 0.9  
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 0.6   0.6    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 3 months 18 days        
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) 27,777        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) 115,050        
The 2020 Equity Incentive Plan (2020 Plan) [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)         3,800,000
Share-Based Payment Arrangement, Expense $ 0.7 $ 0.9 $ 1.6 $ 1.8  
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Minimum [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Shares Earned, Percent 0.00%        
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Maximum [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Shares Earned, Percent 200.00%