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Impairment of Non-Current Assetes (Tables) | 12 Months Ended
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Dec. 31, 2020
Impairment and Reversal of Impairment and Goodwill [Abstract] |
Sensitivity analysis of metal prices | Metal prices used at December 31, 2019:
Metal Prices | 2020-2023 average |
Silver price - $/oz. | $17.94 |
Gold price - $/oz. | $1,474 |

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- Definition Impairment and Reversal of Impairment and Goodwill [Abstract] + References No definition available. + Details
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