v3.25.4
Note 14 - Financial Instruments (Details Textual)
$ in Thousands, $ in Millions, $ in Millions
 12 Months Ended
Nov. 30, 2025
CAD ($)
shares
Nov. 30, 2025
USD ($)
shares
Nov. 30, 2025
AUD ($)
shares
Nov. 30, 2024
CAD ($)
Statement Line Items [Line Items]        
Gains (losses) in other comprehensive income (loss) on change in value of reported currency in 10% change $ 11,426      
Gains (losses) on change in value of reported currency in 10% change 2,377      
Working capital 24,674      
Restricted cash and cash equivalents 60     $ 122
Other assets 491     $ 403
U.S. GoldMining Inc. [member]        
Statement Line Items [Line Items]        
Restricted cash and cash equivalents 10,253      
Other assets $ 1,613      
Number of subsidiary shares held (in shares) | shares 9,878,261 9,878,261 9,878,261  
Number of subsidiary warrants held (in shares) | shares 122,490 122,490 122,490  
Fair value of investment in subsidiary $ 136,400 $ 97.6    
Gold Royalty Corp [member]        
Statement Line Items [Line Items]        
Fair value of investment in subsidiary $ 132,100 $ 94.5    
Number of shares held in investment (in shares) | shares 21,533,125 21,533,125 21,533,125  
Gains (losses) in other comprehensive income (loss) on change in value of equity prices of long-term investment in 10% change $ 12,948      
NevGold [member]        
Statement Line Items [Line Items]        
Fair value of investment in subsidiary $ 16,200      
Number of shares held in investment (in shares) | shares 19,073,350 19,073,350 19,073,350  
Australian mines limited [member]        
Statement Line Items [Line Items]        
Fair value of investment in subsidiary $ 1,300   $ 1.4  
Number of shares held in investment (in shares) | shares 84,429,563 84,429,563 84,429,563  
Galleon Gold Corp. [member]        
Statement Line Items [Line Items]        
Fair value of investment in subsidiary $ 100      
Number of shares held in investment (in shares) | shares 100,000 100,000 100,000  
Currency risk, denominated in USD [member]        
Statement Line Items [Line Items]        
Foreign currency denominated monetary liabilities $ 185