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SHAREHOLDERS' EQUITY - Flow-Through Shares Issuance (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 10, 2025 | Jun. 14, 2024 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Shares issued |  | 1,533,000 |  |  |  |
Gross proceeds |  | $ 21,800 |  |  |  |
Issuance costs |  | 1,500 |  |  |  |
Net proceeds |  | 20,400 | $ 14,374 |  | $ 14,374 |
Net proceeds allocated to the sale of tax benefits |  | 6,000 |  |  |  |
Proceeds from issuance of common stock |  | $ 14,400 |  |  |  |
Canadian Exploration Expenditures |  |  |  |  |  |
Shares issued |  | 643,000 |  |  |  |
Share price |  | $ 15.45 |  |  |  |
Exploration expenditures |  |  |  | $ 5,400 |  | $ 500
Canadian Development Expenses |  |  |  |  |  |
Shares issued |  | 890,000 |  |  |  |
Share price |  | $ 13.4 |  |  |  |
Exploration expenditures |  |  |  | $ 9,000 |  | $ 800
Goliath Resources Limited | Private placement |  |  |  |  |  |
Shares issued for acquisition of mineral property interests (in shares) | 868,056 |  |  |  |  |
Number of units company acquired | 5,181,347 |  |  |  |  |
Number of common shares | 1 |  |  |  |  |
Share purchase warrant | 0.5 |  |  |  |  |

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