v3.26.3
Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Inventory    
Process material stockpiles $ 2,340 $ 3,016
Concentrate inventory 6,403 4,230
Materials and supplies 6,722 4,950
Inventories $ 15,465 $ 12,196