Revenue and Cost of Sales (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Revenue and Cost of Sales | ||||
| Concentrate Sales | $ 31,582 | $ 21,425 | $ 105,588 | $ 59,127 |
| Provisional pricing adjustments | 1,803 | (383) | (5,983) | 2,556 |
| Total | $ 33,385 | $ 21,042 | $ 99,605 | $ 61,683 |