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Note 12 - Share-based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2023
May 31, 2022
May 31, 2023
May 31, 2022
Statement [Line Items]        
Share-based Compensation Expense $ 2,140 $ 2,105 $ 4,301 $ 4,196
Share-Based Payment Arrangement, Option [Member]        
Statement [Line Items]        
Share-based Compensation Expense 1,096 1,192 2,262 2,385
Performance Share Units [Member]        
Statement [Line Items]        
Share-based Compensation Expense 990 859 1,931 1,695
Deferred Share Units [Member]        
Statement [Line Items]        
Share-based Compensation Expense $ 54 $ 54 $ 108 $ 116