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Note 9 - Fair Value Accounting (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Feb. 28, 2025
Nov. 30, 2024
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap:PrimeRateMember  
Equity Securities, FV-NI, Current $ 2,520 $ 3,387
Barrick [Member] | Notes Payable, Other Payables [Member]    
Debt Instrument, Basis Spread on Variable Rate 2.00%