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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares
REVENUE: |  |  |
Gold and silver sales | $ 67,465 | $ 60,388 | $ 72,956
Other revenue | 259 |  |
Total Revenue | 67,724 | 60,388 | 72,956
COSTS AND EXPENSES: |  |  |
Production costs applicable to sales | 45,180 | 28,133 | 34,607
Mine development costs | 3,837 | 3,866 | 1,169
Exploration costs | 17,714 | 7,959 | 8,798
Property holding costs | 3,879 | 3,536 | 4,336
General and administrative costs | 18,872 | 12,734 | 12,045
Loss (income) from investment in Minera Santa Cruz S.A., net of amortization (note 7) | 44 | (12,951) | (2,414)
Depreciation | 1,453 | 1,169 | 942
Revision of estimates and accretion of asset reclamation obligations (note 8) | 2,061 | 595 | 429
Impairment of investment in Minera Santa Cruz S.A. (note 7) |  |  | 11,777
Impairment of mineral property interests and property and equipment (notes 5 and 6) | 711 |  | 50,600
Total costs and expenses | 93,751 | 45,041 | 122,289
Operating (loss) income | (26,027) | 15,347 | (49,333)
OTHER (EXPENSE) INCOME: |  |  |
Interest and other (expense) income: | (938) | 835 | 2,404
Gain on sale of assets | 11 | 24 | 13
Gain on sale of marketable equity securities (note 3) | 840 | 22 |
Other-than-temporary impairment on marketable equity securities (note 3) | (356) | (882) |
Unrealized (loss) gain on derivatives (note 3) | (227) | 1,379 |
Foreign currency (loss) gain | 694 | 581 | 1,906
Total other income | 24 | 1,959 | 4,323
(Loss) Income before income and mining taxes | (26,003) | 17,306 | (45,010)
Income and mining tax recovery (note 9) | 15,369 | 3,749 | 24,560
Net (loss) income | (10,634) | 21,055 | (20,450)
OTHER COMPREHENSIVE (LOSS) INCOME: |  |  |
Reclassification of unrealized gain on marketable securities disposed of during the period, net of taxes (note 3) | (840) |  |
Other-than-temporary impairment on marketable equity securities (note 3) | 356 | 882 |
Unrealized gain (loss) on marketable equity securities, net of $0.5 million, $0.5 million and $nil, tax benefit, respectively | 1,818 | 1,609 | (949)
Comprehensive (loss) income | $ (9,300) | $ 23,546 | $ (21,399)
Net (loss) income per share (note 12): |  |  |
Basic (in dollars per share) | $ / shares | $ (0.03) | $ 0.07 | $ (0.07)
Diluted (in dollars per share) | $ / shares | $ (0.03) | $ 0.07 | $ (0.07)
Weighted average common shares outstanding (thousands) (note 12): |  |  |
Basic (in shares) | shares | 313,887 | 298,772 | 300,341
Diluted (in shares) | shares | 313,887 | 300,474 | 300,341
Return of capital distribution declared per common share (note 10) | $ / shares | 0.010 | 0.005 | 0.010

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