Mineral Properties and Machinery and Equipment, and Construction in Progress - Schedule of Mineral Properties and Fixed Assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Mineral properties | $ 50,532 | $ 50,532 |
| Less: Accumulated depreciation | (369) | (334) |
| Total mineral properties, machinery and equipment, and construction in progress | 51,815 | 50,853 |
| Machinery and equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 679 | 655 |
| Construction in Progress | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 973 | $ 0 |