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v3.22.4

Inventories | 12 Months Ended
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Dec. 31, 2022
Inventories |
Inventories | 4. Inventories At December 31, 2022 and 2021, current inventories consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | As of
​ | ​ | December 31, | ​ | December 31,
​ | ​ | 2022 | ​ | 2021
​ | ​ | (in thousands)
Stockpiles - underground mine | ​ | $ | 597 | ​ | $ | -
Concentrates | ​ | ​ | 3,271 | ​ | ​ | 2,048
Doré, net | ​ | ​ | 653 | ​ | ​ | 452
Subtotal - product inventories | ​ | ​ | 4,521 | ​ | ​ | 2,500
Materials and supplies (1) | ​ | ​ | 8,979 | ​ | ​ | 7,861
Total | ​ | $ | 13,500 | ​ | $ | 10,361
| (1) | Net of reserve for obsolescence of $0.1 million and $0.4 million as of December 31, 2022 and 2021, respectively.

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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 https://asc.fasb.org/topic&trid=2126998 + Details
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