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INVESTMENTS - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2023 CAD ($) | Dec. 31, 2023 CAD ($) | Dec. 31, 2023 CAD ($) | Dec. 31, 2023 CAD ($) lb | Dec. 31, 2023 CAD ($) $ / lb | Dec. 31, 2023 CAD ($) $ / lb | Dec. 31, 2023 CAD ($) $ / shares | Dec. 31, 2023 CAD ($) $ / shares | Dec. 31, 2022 CAD ($) | Dec. 31, 2023 USD ($)
Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Physical Uranium Holdings Cost | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 | $ 84,377,000 |  | $ 68,240,000
Physical uranium sold | lb |  |  |  | 200,000 |  |  |  |  |  |
Physical uranium hold | lb |  |  |  | 2,300,000 |  |  |  |  |  |
Weighted average price per pound of uranium sold |  |  |  |  | 99.50 | 73.38 |  |  |  |
Physical Uranium Holdings Cost Per Price | $ / shares |  |  |  |  |  |  | $ 29.67 |  |  |
Purchase of investment-convertible debenture |  |  | 15,000,000 |  |  |  |  |  | $ 0 |
Convertible Debentures |  |  |  |  |  |  |  |  |  |
Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase of investment-convertible debenture |  |  | 15,000,000 |  |  |  |  |  |  |
Investments, coupon rate |  | 9.00% |  |  |  |  |  |  |  |
Investments, interest payment period | 5 years |  |  |  |  |  |  |  |  |
Investments, convertible to common shares, conversion price per share | $ / shares |  |  |  |  |  |  |  | $ 0.56 |  |
Investments, interest payable in common shares, percent |  | 33.33% |  |  |  |  |  |  |  |
Number of trading days considered for calculating volume weighted average share price | 20 days |  |  |  |  |  |  |  |  |
Fair value of Debentures | $ 15,565,000 | $ 15,565,000 | 15,565,000 | $ 15,565,000 | $ 15,565,000 | $ 15,565,000 | $ 15,565,000 | $ 15,565,000 |  |
Gain on fair value |  |  | $ 565,000 |  |  |  |  |  |  |

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