Mineral Properties (Details) $ in Thousands |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
| |
| Mineral Properties | |
| Beginning balance | $ 43,881 |
| Change in estimated asset retirement costs | 5,361 |
| Depletion and amortization | (2,144) |
| Ending balance | 47,098 |
| Lost Creek Property | |
| Mineral Properties | |
| Beginning balance | 9,183 |
| Change in estimated asset retirement costs | 3,481 |
| Depletion and amortization | (2,144) |
| Ending balance | 10,520 |
| Shirley Basin Project | |
| Mineral Properties | |
| Beginning balance | 19,984 |
| Change in estimated asset retirement costs | 1,880 |
| Ending balance | 21,864 |
| Other U.S. Properties | |
| Mineral Properties | |
| Beginning balance | 14,714 |
| Ending balance | $ 14,714 |