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INVENTORIES (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Inventories |  |  |
Material on leach pads | $ 11,569 |  | $ 21,003
In-process inventory | 3,464 |  | 3,922
Stockpiles | 1,864 |  | 635
Precious metals | 1,702 |  | 1,344
Materials and supplies | 5,582 |  | 4,845
Inventories | 24,181 |  | 31,749
Less current portion | 19,252 |  | 26,964
Long-term portion | 4,929 |  | $ 4,785
Cost Of Sales [Member] |  |  |
Inventories |  |  |
Inventory write-down | 4,000 | $ 2,600 |
Depreciation and depletion |  |  |
Inventories |  |  |
Inventory write-down | 300 | $ 500 |
Black Fox Complex |  |  |
Inventories |  |  |
Inventory write-down | 400 |  |
Gold Bar mine |  |  |
Inventories |  |  |
Inventory write-down | 1,400 |  |
El Gallo Project |  |  |
Inventories |  |  |
Inventory write-down | $ 2,500 |  |

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