Exploration and Evaluation Assets (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2025 |
Jun. 30, 2024 |
|
| Acquisition: | |||
| Balance, beginning of period | $ 22,199 | $ 6,000 | |
| Option payments | 98 | ||
| Impairment | (16,297) | (6,000) | |
| Balance, period end | 6,000 | ||
| Exploration and Evaluation: | |||
| Balance, beginning period | 23,771 | 20,446 | |
| Lanxess 1A evaluation costs | 54 | 22 | |
| Impairment | (3,379) | (20,468) | |
| Balance, period end | 20,446 | ||
| Exploration and evaluation assets | 26,446 | $ 45,970 | |
| California Properties | |||
| Acquisition: | |||
| Balance, beginning of period | 16,199 | ||
| Option payments | 98 | ||
| Impairment | (16,297) | ||
| Exploration and Evaluation: | |||
| Balance, beginning period | 3,379 | ||
| Impairment | (3,379) | ||
| Lanxess 1A Project | |||
| Acquisition: | |||
| Balance, beginning of period | 6,000 | 6,000 | |
| Impairment | (6,000) | ||
| Balance, period end | 6,000 | ||
| Exploration and Evaluation: | |||
| Balance, beginning period | 20,392 | 20,446 | |
| Lanxess 1A evaluation costs | 54 | 22 | |
| Impairment | $ (20,468) | ||
| Balance, period end | 20,446 | ||
| Exploration and evaluation assets | $ 26,446 |