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Note 13 - Financial Instruments (Details Textual)
shares in Thousands, $ in Millions
 12 Months Ended
Nov. 30, 2024
CAD ($)
shares
Nov. 30, 2024
USD ($)
shares
Nov. 30, 2023
CAD ($)
Statement Line Items [Line Items]      
Gains (losses) in other comprehensive income (loss) on change in value of reported currency in 10% change $ 3,366,000    
Gains (losses) on change in value of reported currency in 10% change 722,000    
Working capital 9,081,000    
Restricted cash and cash equivalents 122,000   $ 118,000
Other assets 67,000   $ 47,000
U.S. GoldMining Inc. [member]      
Statement Line Items [Line Items]      
Restricted cash and cash equivalents 5,666    
Other assets $ 2,011    
Number of subsidiary shares held (in shares) | shares 9,880 9,880  
Number of subsidiary warrants held (in shares) | shares 120 120  
Fair value of investment in subsidiary $ 168,100,000 $ 120.0  
Gold Royalty Corp [member]      
Statement Line Items [Line Items]      
Number of shares held in investment (in shares) | shares 21,530 21,530  
Investment in associates accounted for using equity method $ 38,900,000 $ 27.8  
Gains (losses) in other comprehensive income (loss) on change in value of equity prices of long-term investment in 10% change $ 3,366,000    
NevGold [member]      
Statement Line Items [Line Items]      
Number of shares held in investment in associate (in shares) | shares 26,670 26,670  
Investment in associates accounted for using equity method $ 6,700,000    
Currency risk, denominated in USD [member]      
Statement Line Items [Line Items]      
Foreign currency denominated monetary liabilities $ 288,000