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Asset Retirement Obligation (Tables) | 9 Months Ended
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Sep. 30, 2017
Asset Retirement Obligation Disclosure [Abstract] |
Reconciliation of Total Reclamation Liability for Asset Retirement Obligations | The following is a reconciliation of the total reclamation liability for asset retirement obligations:
Balance at December 31, 2016 |  | $ | 1,384 |
Additions to liabilities |  |  | - |
Accretion expenses |  |  | 61 |
Balance at September 30, 2017 |  | $ | 1,445 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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