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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2019
Inventories [abstract] |
Schedule of Inventories |
|  | December 31, |  | December 31,
|  | 2019 |  | 2018
Concentrate stockpiles |  | $ | 2,640 |  | $ | 1,671
Ore stockpiles |  |  | 3,730 |  |  | 3,166
Materials and supplies |  |  | 8,101 |  |  | 9,549
Inventories |  | $ | 14,471 |  | $ | 14,386

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