Quarterly report [Sections 13 or 15(d)]

Note 20 - Income Taxes (Details Textual)

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Note 20 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 01, 2026
May 31, 2026
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
Income Tax Expense (Benefit)     $ 0 $ 628 $ (2,666) $ 1,666
Effective Income Tax Rate Reconciliation, Percent 20.00% 23.00% 0.00% 21.90% 17.90% 20.90%
Deferred Tax Assets, Net of Valuation Allowance   $ 7,400 $ 6,900   $ 6,900  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount     500      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent         21.00% 21.00%
Deferred Tax Assets, Valuation Allowance     $ 200   $ 200