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INVENTORIES | 9 Months Ended
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Sep. 30, 2020
Inventory Disclosure [Abstract] |
Inventories | INVENTORIES
| September 30, 2020 |  | December 31, 2019
Concentrates and work-in-progress(1) | $ | 25,556 |  |  | $ | 20,893 |
Inventory of ore in stockpiles | 241 |  |  | 241 |
Raw materials and consumables | 2,772 |  |  | 2,823 |
| $ | 28,569 |  |  | $ | 23,957 |
Inventories - by duration |  |  |
Current | $ | 27,420 |  |  | $ | 22,808 |
Long term - raw materials and consumables | 1,149 |  |  | 1,149 |
| $ | 28,569 |  |  | $ | 23,957 |
(1) For the three and nine months ended September 30, 2020, the Company recorded an impairment loss of $0.14 million and $1.64 million in the statement of operations related to concentrates and work in progress inventories (September 30, 2019 - $2.33 million and $8.41 million).

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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