XML 43 R17.htm IDEA: XBRL DOCUMENT
v3.19.1

Impairment Reversal | 12 Months Ended
--- | ---
Dec. 31, 2018
Impairment Reversal [abstract] |
Impairment Reversal | 10. Impairment Reversal For the year ended December 31, 2017, the Company recognized an impairment reversal of $31,119 with respect to the Caylloma Mine. The impairment reversal was due to the significant increase in resources from the successful exploration drill program at the Animas NE vein and increases in the estimated zinc and lead prices. With the increase in resources, as well as increases in estimated prices, management updated its mine plan for the Caylloma mine. The new mine plan significantly improved the production profile and the associated cash flows compared with the Company’s previous estimates and accordingly, was considered to be an indicator of impairment reversal. The impairment charges were recorded during the years ended December 31, 2015 and 2013 and totaled $55,000 before tax. The amount of impairment reversal is limited to the carrying amount had no impairment been recognized in prior periods, net of depletion and amortization which would have been recognized. The recoverable amount of the Caylloma Mine was determined based on its fair value less costs of disposal estimated utilizing a discounted cash flow model. The projected cash flows used are significantly affected by changes in assumptions for metal prices, changes in the amount of recoverable reserves and resources, production cost estimates, future capital expenditures and discount rates. The discounted cash flow model is a Level 3 measurement in the fair value hierarchy. For the year ended December 31, 2017, the Company’s impairment testing incorporated the following key assumptions in addition to the increase in the estimated life of the mine: a) Weighted average cost of capital As at December 31, 2017, projected cash flows were discounted using a real after-tax discount rate of 4.1% which represented the estimated weighted average cost of capital. b) Metal Price assumptions
Metal Price Assumptions |  | 2018 |  | 2019 |  | 2020 |  | 2021 |  | 2022 -2025
Silver price ($ 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

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of information for an individual asset, including goodwill, or a cash-generating unit, for which an impairment loss has been recognised or reversed. [Refer: Goodwill; Impairment loss; Reversal of impairment loss; Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration