Inventory (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Classes of current inventories [Abstract] | ||
| Net realizable value write-down for vanadium finished products | $ 20,439 | $ 13,897 |
| Net realizable value write-down for battery components | 869 | 4,340 |
| Net realizable value write-down for warehouse materials | $ 36 | $ 238 |