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Note 9 - Fair Value Accounting (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	May 31, 2023	Nov. 30, 2022
Statement [Line Items]
Equity Securities, FV-NI, Current	$ 2,209	$ 1,845
Barrick [Member] | Notes Payable, Other Payables [Member] | Prime Rate [Member]
Statement [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.00%

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