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INVENTORIES | 9 Months Ended
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Sep. 30, 2019
INVENTORIES |
INVENTORIES | NOTE 6 INVENTORIES Inventories at September 30, 2019 and December 31, 2018 consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2019 |  | December 31, 2018
Material on leach pads | ​ | $ | 32,659 | ​ | $ | 14,961
In-process inventory | ​ |  | 3,370 | ​ |  | 3,446
Stockpiles | ​ |  | 1,004 | ​ |  | 1,272
Precious metals | ​ |  | 1,278 | ​ |  | 3,421
Materials and supplies | ​ |  | 3,794 | ​ |  | 3,530
Inventories | ​ | $ | 42,105 | ​ | $ | 26,630
Current portion | ​ | ​ | 34,368 | ​ | ​ | 22,039
Long-term portion | ​ | $ | 7,737 | ​ | $ | 4,591
​

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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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