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Note 12 - Investments in Associates (Details Textual) - CAD ($)
$ in Thousands
12 Months Ended
Oct. 04, 2024
Mar. 12, 2024
Oct. 13, 2022
Sep. 30, 2022
Apr. 01, 2022
Feb. 25, 2022
Jul. 01, 2021
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Statement Line Items [Line Items]                    
Proceeds from sales of investments accounted for using equity method               $ 7,042 $ 0 $ 6,774
Gains (losses) on disposals of investments               4,109 (0) (0)
Impairment loss (reversal of impairment loss) recognised in profit or loss               100,873 0 5,506
Expense from share-based payment transactions               859 1,351 $ 1,669
Dolly Varden [member]                    
Statement Line Items [Line Items]                    
Fair value of investments in associates for which there are quoted market prices               $ 49,012 $ 51,769  
Number of shares in entity held by entity or by its subsidiaries or associates (in shares) 3,000,000 5,450,000 17,000,000 17,000,000   76,504,590   8,450,000    
Proceeds from sales of investments accounted for using equity method $ 3,356 $ 4,006 $ 6,774         $ 7,042    
Gains (losses) on disposals of investments               4,109    
Gains on disposals of investments               2,026    
Deemed gain on disposals of investments               $ 2,083    
Proportion of ownership interest in associate 16.11% 19.99% 22.20%     35.33%   16.11%    
Impairment loss (reversal of impairment loss) recognised in profit or loss     $ 5,506 $ 5,506            
Total for all associates [member]                    
Statement Line Items [Line Items]                    
Deemed gain on disposals of investments               $ 2,083    
Proportion of ownership interest in associate                 100.00% 100.00%
Universal Mineral Services (UMS) [member]                    
Statement Line Items [Line Items]                    
Deemed gain on disposals of investments               $ 0    
Proportion of ownership interest in associate         25.00%     25.00%    
Current payables to related parties               $ 90 $ 103 $ 240
Lease, term of contract (Year)             10 years      
Rental expense               91    
Expense from share-based payment transactions               $ 3 $ 317 $ 483