Quarterly report [Sections 13 or 15(d)]

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Inventory Disclosure [Abstract]    
Supplies $ 1,923 $ 2,080
Raw materials 0 15
Work in process 656 4,081
Finished goods 887 672
Total inventories $ 3,466 $ 6,848