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Segmented and geographic information, and major customers | 12 Months Ended
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Dec. 31, 2017
Disclosure of operating segments [abstract] |
Segmented and geographic information, and major customers | 20. Segmented and geographic information, and major customers a. Segmented information The Company’s operations comprise of three reporting segments engaged in acquisition, exploration, development and exploration of mineral resource properties in Mexico and the United States. Management has determined the operating segments based on the reports reviewed by the chief operating decision makers that are used to make strategic decisions. b. Geographic information All revenues from sale of concentrates for year ended December 31, 2017 and 2016 were earned in Mexico and the United States. The following segmented information is presented as at and during the years ended December 31, 2017 and 2016.
|  | As at December 31, 2017 |  |  | As at December 31, 2016 |
|  | Mexican Operations |  |  | U.S. Operations |  |  | Corporate and Other |  |  | Total |  |  | Mexican Operations |  |  | U.S. Operations |  |  | Corporate and Other |  |  | Total |
Cash and cash equivalents |  | $ | 5,963 |  |  | $ | 1,791 |  |  | $ | 1,571 |  |  | $ | 9,325 |  |  | $ | 1,875 |  |  | $ | 3,511 |  |  | $ | 18,669 |  |  | $ | 24,055 |
Trade and other receivables |  |  | 4,901 |  |  |  | 1,711 |  |  |  | 19 |  |  |  | 6,631 |  |  |  | 2,855 |  |  |  | 1,106 |  |  |  | 41 |  |  |  | 4,002 |
Inventories |  |  | 6,301 |  |  |  | 3,065 |  |  |  | - |  |  |  | 9,366 |  |  |  | 3,738 |  |  |  | 2,880 |  |  |  | - |  |  |  | 6,618 |
Prepaid expenses |  |  | 346 |  |  |  | 305 |  |  |  | 218 |  |  |  | 869 |  |  |  | 840 |  |  |  | 353 |  |  |  | 192 |  |  |  | 1,385 |
Available-for-sale investment |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 503 |  |  |  | 503 |
Restricted cash |  |  | 160 |  |  |  | 171 |  |  |  | - |  |  |  | 331 |  |  |  | - |  |  |  | 151 |  |  |  | - |  |  |  | 151 |
Long-term investments |  |  | - |  |  |  | - |  |  |  | 4 |  |  |  | 4 |  |  |  | - |  |  |  | - |  |  |  | 28 |  |  |  | 28 |
Property, plant and equipment |  |  | 59,686 |  |  |  | 40,570 |  |  |  | 45 |  |  |  | 100,301 |  |  |  | 42,474 |  |  |  | 38,022 |  |  |  | 52 |  |  |  | 80,548 |
Total assets |  | $ | 77,357 |  |  | $ | 47,613 |  |  | $ | 1,857 |  |  | $ | 126,827 |  |  | $ | 51,782 |  |  | $ | 46,023 |  |  | $ | 19,485 |  |  | $ | 117,290 |
Trade and other payables |  | $ | 5,893 |  |  | $ | 2,608 |  |  | $ | 1,892 |  |  | $ | 10,393 |  |  | $ | 4,144 |  |  | $ | 2,422 |  |  | $ | 2,161 |  |  | $ | 8,727 |
Other long-term liabilities |  |  | - |  |  |  | 469 |  |  |  | 95 |  |  |  | 564 |  |  |  | - |  |  |  | 448 |  |  |  | 434 |  |  |  | 882 |
Credit facilities |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 7,758 |  |  |  | 7,758 |
Pre-payment facility |  |  | 15,000 |  |  |  | - |  |  |  | - |  |  |  | 15,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Post-employment benefit obligations |  |  | - |  |  |  | 8,618 |  |  |  | - |  |  |  | 8,618 |  |  |  | - |  |  |  | 8,116 |  |  |  | - |  |  |  | 8,116 |
Decommissioning provision |  |  | 1,904 |  |  |  | 2,044 |  |  |  | - |  |  |  | 3,948 |  |  |  | 1,834 |  |  |  | 1,995 |  |  |  | - |  |  |  | 3,829 |
Deferred tax liabilities (assets) |  |  | 872 |  |  |  | (626 | ) |  |  | - |  |  |  | 246 |  |  |  | 834 |  |  |  | - |  |  |  | - |  |  |  | 834 |
Total liabilities |  | $ | 23,669 |  |  | $ | 13,113 |  |  | $ | 1,987 |  |  | $ | 38,769 |  |  | $ | 6,812 |  |  | $ | 12,981 |  |  | $ | 10,353 |  |  | $ | 30,146 |
|  | Year ended December 31, 2017 |  |  | Year ended December 31, 2016 |
|  | Mexican Operations |  |  | U.S. Operations |  |  | Corporate and Other |  |  | Total |  |  | Mexican Operations |  |  | U.S. Operations |  |  | Corporate and Other |  |  | Total |
Revenue |  | $ | 21,512 |  |  | $ | 32,768 |  |  | $ | - |  |  | $ | 54,280 |  |  | $ | 23,322 |  |  | $ | 35,544 |  |  | $ | - |  |  | $ | 58,866 |
Cost of sales |  |  | (10,195 | ) |  |  | (29,843 | ) |  |  | - |  |  |  | (40,038 | ) |  |  | (17,679 | ) |  |  | (28,466 | ) |  |  | - |  |  |  | (46,145 | )
Depletion and amortization |  |  | (3,247 | ) |  |  | (3,452 | ) |  |  | (10 | ) |  |  | (6,709 | ) |  |  | (3,534 | ) |  |  | (3,839 | ) |  |  | (15 | ) |  |  | (7,388 | )
Care, maintenance and restructuring costs |  |  | (60 | ) |  |  | (473 | ) |  |  | (168 | ) |  |  | (701 | ) |  |  | (399 | ) |  |  | (495 | ) |  |  | (99 | ) |  |  | (993 | )
Corporate general and administrative |  |  | - |  |  |  | - |  |  |  | (6,651 | ) |  |  | (6,651 | ) |  |  | - |  |  |  | - |  |  |  | (5,355 | ) |  |  | (5,355 | )
Exploration costs |  |  | (2,407 | ) |  |  | (319 | ) |  |  | - |  |  |  | (2,726 | ) |  |  | (690 | ) |  |  | (991 | ) |  |  | - |  |  |  | (1,681 | )
Accretion on decommissioning provision |  |  | (144 | ) |  |  | (41 | ) |  |  | - |  |  |  | (185 | ) |  |  | (112 | ) |  |  | (40 | ) |  |  | - |  |  |  | (152 | )
Interest and financing income (expense) |  |  | (35 | ) |  |  | - |  |  |  | (688 | ) |  |  | (723 | ) |  |  | 2 |  |  |  | - |  |  |  | (2,339 | ) |  |  | (2,337 | )
Foreign exchange gain (loss) |  |  | (308 | ) |  |  | - |  |  |  | 83 |  |  |  | (225 | ) |  |  | 384 |  |  |  | - |  |  |  | (44 | ) |  |  | 340 |
Loss on disposal of assets |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (20 | ) |  |  | (20 | )
Loss on available-for-sale investment |  |  | - |  |  |  | - |  |  |  | (11 | ) |  |  | (11 | ) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Write-down of equipment |  |  | - |  |  |  | (204 | ) |  |  | - |  |  |  | (204 | ) |  |  | - |  |  |  | - |  |  |  | (132 | ) |  |  | (132 | )
Income (loss) before income taxes |  |  | 5,116 |  |  |  | (1,564 | ) |  |  | (7,445 | ) |  |  | (3,893 | ) |  |  | 1,294 |  |  |  | 1,713 |  |  |  | (8,004 | ) |  |  | (4,997 | )
Income tax recovery (expense) |  |  | (219 | ) |  |  | 646 |  |  |  | - |  |  |  | 427 |  |  |  | (210 | ) |  |  | - |  |  |  | - |  |  |  | (210 | )
Net income (loss) for the year |  | $ | 4,897 |  |  | $ | (918 | ) |  | $ | (7,445 | ) |  | $ | (3,466 | ) |  | $ | 1,084 |  |  | $ | 1,713 |  |  | $ | (8,004 | ) |  | $ | (5,207 | )
c. Major customers The Company sold concentrates to two customers during the year ended December 31, 2017 (2016: four customers), with each customer accounting for 60%, and 40% (2016: 59%, 31%, 9%, and 1%) of revenues, respectively.

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- Definition The entire disclosure for operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2017-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2017-03-09 + Details
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