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Impairment Reversal (Table) | 12 Months Ended
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Dec. 31, 2018
Impairment Reversal [abstract] |
Schedule of Metal Prices Assumptions Used for Impairment Determination | For the year ended December 31, 2017, the Company’s impairment testing incorporated the following key assumptions in addition to the increase in the estimated life of the mine: a) Weighted average cost of capital As at December 31, 2017, projected cash flows were discounted using a real after-tax discount rate of 4.1% which represented the estimated weighted average cost of capital. b) Metal Price assumptions
Metal Price Assumptions |  | 2018 |  | 2019 |  | 2020 |  | 2021 |  | 2022 -2025
Silver price ($ per ounce) |  | $ | 17.56 |  | $ | 18.44 |  | $ | 19.00 |  | $ | 19.00 |  | $ | 18.40
Gold price ($ per ounce) |  | $ | 1,300 |  | $ | 1,300 |  | $ | 1,342 |  | $ | 1,325 |  | $ | 1,325
Lead price ($ per tonne) |  | $ | 2,469 |  | $ | 2,403 |  | $ | 2,315 |  | $ | 2,205 |  | $ | 2,205
Zinc price ($ per tonne) |  | $ | 3,175 |  | $ | 3,031 |  | $ | 2,756 |  | $ | 2,756 |  | $ | 2,425

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