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Note 7 - Promissory Note (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2023
Nov. 30, 2022
Nov. 30, 2021
Nov. 30, 2020
Notes Payable $ 136,748 $ 123,685 $ 115,723 $ 109,801
Barrick [Member] | Notes Payable, Other Payables [Member]        
Notes Payable 136,748      
Debt Instrument, Face Amount 51,576      
Interest Payable $ 85,172      
Debt Instrument, Interest Rate, Effective Percentage 10.30% 6.80% 5.30%  
Percentage of Specified Revenue from Which the Promissory Note and Accrued Interest Are Payable 85.00%      
Barrick [Member] | Notes Payable, Other Payables [Member] | Prime Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate 2.00%