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Note 6 - Long-term Investments (Details Textual) - CAD ($)
$ / shares in Units, $ in Thousands
 5 Months Ended 7 Months Ended 12 Months Ended
Jul. 13, 2023
Jan. 01, 2023
Dec. 05, 2022
Dec. 01, 2022
Jun. 13, 2022
Nov. 30, 2023
Jul. 12, 2023
Nov. 30, 2023
Nov. 30, 2022
Nov. 30, 2021
Statement Line Items [Line Items]                    
Increase (decrease) through equity investments designated at fair value through other comprehensive income               $ 4,599 $ 8,689  
Investments in equity instruments designated at fair value through other comprehensive income           $ 45,080   45,080 77,839 $ 130,090
Investments in associates accounted for using equity method           6,297   $ 6,297 0  
Gold Royalty Corp [member]                    
Statement Line Items [Line Items]                    
Increase (decrease) in number of shares through equity investments designated at fair value through other comprehensive income (in shares)               254,466    
Increase (decrease) through equity investments designated at fair value through other comprehensive income               $ 654 5,200  
Investments in equity instruments designated at fair value through other comprehensive income           $ 45,052   $ 45,052 75,557 130,090
NevGold Corp [member]                    
Statement Line Items [Line Items]                    
Increase (decrease) through equity investments designated at fair value through other comprehensive income         $ 1,000       3,489  
Purchase of equity, number of shares received (in shares) 4,109,589 3,658,536 2,976,200         10,744,325    
Purchase of equity, warrants received (in shares)     1,488,100         1,488,100    
Number of shares held in equity accounted investment (in shares)           16,670,250   16,670,250    
Proportion of ownership interest in associate           22.00% 17.60% 22.10%    
Purchase of equity, number of units (in shares)     2,976,200              
Units purchased, number of shares per unit (in shares)       2,976,200            
Purchase of equity, purchase price       $ 1,250            
Issue of units, price per unit (in CAD per share)       $ 0.42            
Class of warrant, exercise price of warrant (in CAD per share)       $ 0.6            
Investments in equity instruments designated at fair value through other comprehensive income       $ 1,042         $ 2,282 $ 0
Fair value of shares received $ 1,562 $ 1,134                
Investments in associates accounted for using equity method $ 6,335                  
NevGold Corp [member] | NevGold warrants [member]                    
Statement Line Items [Line Items]                    
Increase (decrease) through equity investments designated at fair value through other comprehensive income               $ 208    
Investments in equity instruments designated at fair value through other comprehensive income       $ 208   $ 28   $ 28