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Note 7 - Promissory Note (Details Textual) - Barrick [Member] - Notes Payable, Other Payables [Member] $ in Thousands	6 Months Ended
	May 31, 2023 USD ($)
Statement [Line Items]
Notes Payable	$ 129,841
Debt Instrument, Face Amount	51,576
Interest Payable	$ 78,265
Percentage of Specified Revenue from Which the Promissory Note and Accrued Interest Are Payable	85.00%
Prime Rate [Member]
Statement [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.00%

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Represents the percentage of revenue from future mine production or from any net proceeds resulting from a reduction of the reporting entity's interest in the specified equity method investment, from which the promissory note and accrued interest are payable.

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