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INVESTMENTS - Balances (Details) - CAD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Statement [Line Items] |  |  |
Current investments | $ 10,400 | $ 8,022 |
Long-term | 292,497 | 162,623 |
Total investment | 302,897 | 170,645 | $ 147,692
Convertible Debentures |  |  |
Statement [Line Items] |  |  |
Total investment | 15,565 | 0 | 0
Physical Uranium |  |  |
Statement [Line Items] |  |  |
Total investment | 276,815 | 162,536 | $ 133,114
Warrants |  |  |
Statement [Line Items] |  |  |
Total investment | 127 | 87 |
Shares |  |  |
Statement [Line Items] |  |  |
Total investment | $ 10,390 | $ 8,022 |

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