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Note 6 - Exploration and Evaluation Assets (Details Textual)
$ / shares in Units, $ in Thousands
 6 Months Ended 7 Months Ended 12 Months Ended 19 Months Ended
Jan. 01, 2024
CAD ($)
Jul. 01, 2023
CAD ($)
Jan. 01, 2023
CAD ($)
Dec. 01, 2022
CAD ($)
Jul. 04, 2022
CAD ($)
Jun. 13, 2022
CAD ($)
$ / shares
shares
Mar. 11, 2022
CAD ($)
shares
Oct. 14, 2021
CAD ($)
$ / shares
shares
Oct. 14, 2021
USD ($)
shares
Nov. 30, 2022
CAD ($)
Dec. 31, 2023
CAD ($)
Jan. 01, 2024
CAD ($)
Jun. 01, 2023
CAD ($)
Nov. 30, 2022
CAD ($)
shares
Nov. 30, 2021
CAD ($)
shares
Nov. 30, 2021
USD ($)
shares
Nov. 30, 2020
CAD ($)
shares
Dec. 31, 2023
CAD ($)
Statement Line Items [Line Items]                                    
Payment for settlement agreement claim               $ 124                    
Increase (decrease) in number of shares outstanding from settlement of litigation (in shares) | shares               324,723 324,723                  
Gains on litigation settlements                           $ 0 $ 760      
Recovery on grant of mineral property option                   $ 1,379       $ 1,379 (0)      
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares                                 20,000,000  
Increase (decrease) through equity investments designated at fair value through other comprehensive income                             $ 8,689   $ 120,833  
NevGold Corp [member]                                    
Statement Line Items [Line Items]                                    
Number of common shares receipt (in shares) | shares                           4,444,444        
Common shares receipt, fair value                   $ 2,489       $ 2,489        
Share price (in CAD per share) | $ / shares           $ 0.675                        
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares           1,481,481               1,481,481 5,925,925 5,925,925    
Increase (decrease) through equity investments designated at fair value through other comprehensive income           $ 1,000               $ 1,000 $ 3,489      
Almaden gold project [member]                                    
Statement Line Items [Line Items]                                    
Proportion of ownership interest in project           100.00%                        
Almaden gold project [member] | NevGold Corp [member]                                    
Statement Line Items [Line Items]                                    
Number of common shares receipt (in shares) | shares           4,444,444                        
Common shares receipt, fair value           $ 2,489                        
Share price (in CAD per share) | $ / shares           $ 0.56                        
Recovery on grant of mineral property option           $ 1,379                        
Option Agreement, additional payments $ 3,000 $ 1,500 $ 1,500                 $ 6,000            
Aggregating of project qualifying expenditure                     $ 750   $ 1,500         $ 2,250
Maximum success-based Contingent Payments requirement           7,500                        
Contingent payments requirement, completion of a positive Preliminary Economic Assessment           500                        
Contingent payments requirement, completion of a positive Preliminary Feasibility Study           2,500                        
Contingent payments requirement, completion of a positive Feasibility Study           $ 4,500                        
Third-party royalty holder [member]                                    
Statement Line Items [Line Items]                                    
Settlement agreement, claim amount                 $ 500,000                  
Payment for settlement agreement claim                 $ 100,000                  
Increase (decrease) in number of shares outstanding from settlement of litigation (in shares) | shares               324,723 324,723                  
Shares issued, price per share (in CAD per share) | $ / shares               $ 1.62                    
Net profits interest royalty, percentage                                 1.33%  
Net smelter return royalty, percentage                             0.50% 0.50%    
Net smelter return royalty can be repurchased, price                               $ 250,000    
Newrange [member] | Yarumalito gold project [member]                                    
Statement Line Items [Line Items]                                    
Net smelter return royalty, percentage             1.00%                      
Payments to acquire net smelter return             $ 100                      
Net smelter return royalty, number of common shares delivered (in shares) | shares             10,000                      
Purchase price, including transaction costs to acquire net smelter return royalty             $ 134                      
NevGold [member] | Brokered private placement [member]                                    
Statement Line Items [Line Items]                                    
Investor rights agreement, minimum equity interest, percentage         4.99%                          
NevGold [member] | Brokered private placement [member] | Potential ordinary share transactions [member]                                    
Statement Line Items [Line Items]                                    
Purchase of equity, purchase price       $ 1,250                            
NevGold [member] | Brokered private placement [member] | Top of range [member]                                    
Statement Line Items [Line Items]                                    
Purchase of equity, purchase price         $ 1,250                          
Purchase of equity, percentage of gross proceeds         40.00%