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Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2020
Asset Retirement Obligations (Tables) |
Schedule of Asset Retirement Obligations |
Asset Retirement Obligations |  | Total |
December 31, 2017 |  |  | 27,036 |
Change in estimated reclamation costs |  |  | 2,840 |
Accretion expense |  |  | 508 |
December 31, 2018 |  |  | 30,384 |
Change in estimated reclamation costs |  |  | 11 |
Accretion expense |  |  | 577 |
December 31, 2019 |  |  | 30,972 |
Change in estimated reclamation costs |  |  | (1,583 | )
Accretion expense |  |  | 576 |
December 31, 2020 |  |  | 29,965 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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