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INVENTORIES - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Inventory [Line Items] |  |
Concentrates and work-in-progress | $ 27,660 | $ 35,476
Inventory of ore in stockpiles | 249 | 940
Consumables | 1,904 | 4,204
Total inventories | 29,813 | 40,620
Current | 27,660 | 38,155
Long term | $ 2,153 | $ 2,465

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