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Note 12 - Share-based Compensation - Other PSU-related Information (Details) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2023
May 31, 2022
May 31, 2023
May 31, 2022
Statement [Line Items]        
Withholding tax paid on PSUs vested $ (0) $ (0) $ (0) $ 2,122
Performance Share Units [Member]        
Statement [Line Items]        
Performance multiplier on PSUs vested     0.00% 93.00%
Common shares issued (thousands) (in shares)     0 430
Total fair value of common shares issued     $ 0 $ 2,903
Withholding tax paid on PSUs vested     $ 0 $ 2,122