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Management of Financial Risk (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Schedule of Company's Maximum Exposure to Credit Risk | The Company’s maximum exposure to credit risk as at December 31, 2017 and 2016 is as follows: ﻿ ﻿
﻿ |  |  |  |  |  |
﻿ |  |  | December 31, |  |  | December 31,
﻿ |  |  | 2017 |  |  | 2016
﻿Cash and cash equivalents |  | $ | 183,074 |  | $ | 82,484
﻿Short term investments |  |  | 29,500 |  |  | 41,100
﻿Marketable securities |  |  | 556 |  |  | 1,579
﻿Derivative assets |  |  | 140 |  |  | 973
﻿Accounts receivable and other assets |  |  | 36,370 |  |  | 24,987
﻿Income tax receivable |  |  | 130 |  |  | 72
﻿Other non-current receivables |  |  | 1,223 |  |  | 562
﻿ |  | $ | 250,993 |  | $ | 151,757
﻿
Schedule of Company's Liquidity Risk | The following are the remaining contractual maturities of financial liabilities at the reporting date. The tables include cash flows associated with both interest and principal payments. ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Expected payments due by year as at December 31, 2017
﻿ |  |  | Less than |  |  |  |  |  |  |  |  | After |  |  |
﻿ |  |  | 1 year |  |  | 1 – 3 years |  |  | 4 – 5 years |  |  | 5 years |  |  | Total
﻿Trade and other payables |  | $ | 41,476 |  | $ | - |  | $ | - |  | $ | - |  | $ | 41,476
﻿Bank loan |  |  | - |  |  | 40,000 |  |  | - |  |  | - |  |  | 40,000
﻿Derivative liabilities |  |  | 2,328 |  |  | - |  |  | - |  |  | - |  |  | 2,328
﻿Income tax payable |  |  | 14,237 |  |  | - |  |  | - |  |  | - |  |  | 14,237
﻿Finance lease obligations |  |  | 906 |  |  | - |  |  | - |  |  | - |  |  | 906
﻿Other liabilities |  |  | - |  |  | 1,356 |  |  | - |  |  | - |  |  | 1,356
﻿Operating leases |  |  | 653 |  |  | 1,025 |  |  | 634 |  |  | - |  |  | 2,312
﻿Provisions |  |  | 1,708 |  |  | 4,690 |  |  | 5,465 |  |  | 3,323 |  |  | 15,186
﻿ |  | $ | 61,308 |  | $ | 47,071 |  | $ | 6,099 |  | $ | 3,323 |  | $ | 117,801
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Expected payments due by year as at December 31, 2016
﻿ |  |  | Less than |  |  |  |  |  |  |  |  | After |  |  |
﻿ |  |  | 1 year |  |  | 1 – 3 years |  |  | 4 – 5 years |  |  | 5 years |  |  | Total
﻿Trade and other payables |  | $ | 40,160 |  | $ | - |  | $ | - |  | $ | - |  | $ | 40,160
﻿Bank loan |  |  | - |  |  | 40,000 |  |  | - |  |  | - |  |  | 40,000
﻿Derivative liabilities |  |  | 254 |  |  | - |  |  | - |  |  | - |  |  | 254
﻿Income tax payable |  |  | 14,447 |  |  | - |  |  | - |  |  | - |  |  | 14,447
﻿Finance lease obligations |  |  | 2,189 |  |  | 912 |  |  | - |  |  | - |  |  | 3,101
﻿Other liabilities |  |  | - |  |  | 3,544 |  |  | - |  |  | - |  |  | 3,544
﻿Operating leases |  |  | 431 |  |  | 360 |  |  | 82 |  |  | - |  |  | 873
﻿Provisions |  |  | 1,154 |  |  | 2,728 |  |  | 5,172 |  |  | 5,174 |  |  | 14,228
﻿ |  | $ | 58,635 |  | $ | 47,544 |  | $ | 5,254 |  | $ | 5,174 |  | $ | 116,607
﻿
Currency risk [member] |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Disclosure of Nature and Extent of Risks Arising from Financial Instruments | As at December 31, 2017 and 2016, the Company was exposed to currency risk through the following assets and liabilities denominated in foreign currencies: ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  | December 31, 2017
﻿ |  |  | Canadian Dollars |  |  | Peruvian Soles |  |  | Mexican Pesos |  |  | Argentinian Pesos
﻿Cash and cash equivalents |  |  | 4,511 |  |  | 693 |  |  | 27,842 |  |  | 12,186
﻿Marketable securities |  |  | 697 |  |  | - |  |  | - |  |  | -
﻿Accounts receivable and other assets |  |  | 292 |  |  | 4,428 |  |  | 3,018 |  |  | 33
﻿Income tax receivable |  |  | - |  |  | 421 |  |  | - |  |  | -
﻿Investments in associates |  |  | 3,685 |  |  | - |  |  | - |  |  | -
﻿Trade and other payables |  |  | (14,950) |  |  | (17,244) |  |  | (253,702) |  |  | (7,814)
﻿Provisions, current |  |  | - |  |  | - |  |  | (2,418) |  |  | -
﻿Income tax payable |  |  | - |  |  | (6,631) |  |  | (176,977) |  |  | -
﻿Other liabilities |  |  | (1,576) |  |  | - |  |  | (1,967) |  |  | -
﻿Provisions |  |  | - |  |  | - |  |  | (78,567) |  |  | -
﻿Total foreign currency exposure |  |  | (7,341) |  |  | (18,333) |  |  | (482,771) |  |  | 4,405
﻿US$ equivalent of foreign currency exposure |  |  | (5,852) |  |  | (5,650) |  |  | (24,462) |  |  | 236
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  | December 31, 2016
﻿ |  |  | Canadian Dollars |  |  | Peruvian Soles |  |  | Mexican Pesos |  |  | Argentinian Pesos
﻿Cash and cash equivalents |  |  | 9,436 |  |  | 4,098 |  |  | 7,788 |  |  | 16,502
﻿Marketable securities |  |  | 2,300 |  |  | - |  |  | - |  |  | -
﻿Accounts receivable and other assets |  |  | 343 |  |  | 3,810 |  |  | 3,369 |  |  | 115
﻿Income tax receivable |  |  | - |  |  | 243 |  |  | - |  |  | -
﻿Deposits on non-current assets |  |  | - |  |  | - |  |  | 4,325 |  |  | 8,419
﻿Trade and other payables |  |  | (14,581) |  |  | (13,666) |  |  | (208,364) |  |  | (3,891)
﻿Due to related parties |  |  | (14) |  |  | - |  |  | - |  |  | -
﻿Provisions, current |  |  | - |  |  | (2,765) |  |  | (6,169) |  |  | -
﻿Income tax payable |  |  | - |  |  | (7,564) |  |  | (202,804) |  |  | 509
﻿Other liabilities |  |  | (4,679) |  |  | - |  |  | (1,220) |  |  | -
﻿Provisions |  |  | - |  |  | (24,719) |  |  | (93,520) |  |  | (7,283)
﻿Total foreign currency exposure |  |  | (7,195) |  |  | (40,563) |  |  | (496,595) |  |  | 14,371
﻿US$ equivalent of foreign currency exposure |  |  | (5,359) |  |  | (12,072) |  |  | (24,032) |  |  | 904
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ Sensitivity as to change in foreign currency exchange rates on our foreign currency exposure as at December 31, 2017 is provided below: ﻿
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  |  |  |  | Effect on foreign
﻿ |  |  |  |  | denominated
﻿Currency |  | Change |  |  | items
﻿Mexican Peso |  | +/- 10% |  | $ | 2,351
﻿Peruvian Soles |  | +/- 10% |  | $ | 739
﻿Argentinian Peso |  | +/- 10% |  | $ | 52
﻿Canadian Dollar |  | +/- 10% |  | $ | 509
﻿
Commodity price risk [member] |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Disclosure of Nature and Extent of Risks Arising from Financial Instruments |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿Metal |  | Change |  |  | Effect on Sales
﻿Silver |  | +/- 10% |  | $ | 6,708
﻿Gold |  | +/- 10% |  | $ | 3,483
﻿Lead |  | +/- 10% |  | $ | 279
﻿Zinc |  | +/- 10% |  | $ | 453
﻿

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