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OPERATING SEGMENT REPORTING (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | $ 32,691 | $ 26,896 | $ 84,657 | $ 101,743 |  |
Revision of estimates and accretion of reclamation obligations (note 11) | (495) | (314) | (1,383) | (896) |  |
Depreciation and depletion | (7,488) | (3,143) | (17,501) | (10,332) |  |
Loss from investment in Minera Santa Cruz S.A. (note 8) | (328) | (4,973) | (6,775) | (7,450) |  |
Advanced projects | (2,140) | (5,230) | (6,881) | (10,990) |  |
Segment income (loss) | (14,544) | (12,421) | (29,649) | (18,822) |  |
General and Administrative and other | 887 | (2,482) | (7,541) | (9,950) |  |
Gross profit | 1,619 | 6,013 | 7,724 | 29,333 |  |
Interest and other expense | (650) | (832) | (3,946) | (612) |  |
Revision of estimates and accretion of reclamation obligations | (495) | (314) | (1,383) | (896) |  |
Foreign currency (loss) gain | 1,616 | 1,159 | 1,242 | 3,568 |  |
Net income (loss) | (13,657) | (14,903) | (37,190) | (28,772) |  |
Long-Lived Assets | 550,325 |  | 550,325 |  | $ 557,565 |
Investment in MSC | 116,994 |  | 116,994 |  | 127,814 |
Mexico |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Depreciation and depletion | (109) | (414) | (471) | (1,819) |  |
Advanced projects | (1,710) | (2,692) | (5,865) | (5,819) |  |
Segment income (loss) | (732) | 3,538 | (1,370) | 15,698 |  |
Gross profit | 980 | 6,526 | 4,497 | 23,113 |  |
MSC |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Loss from investment in Minera Santa Cruz S.A. (note 8) | (328) | (4,973) | (6,775) | (7,450) |  |
Segment income (loss) | (328) | (4,973) | (6,775) | (7,450) |  |
Los Azules |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Segment income (loss) | (749) | (540) | (2,386) | (6,406) |  |
U.S. |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Depreciation and depletion | (3,790) |  | (6,510) |  |  |
Advanced projects | (46) | (2,538) | (632) | (5,171) |  |
Segment income (loss) | (3,668) | (3,577) | (5,154) | (9,361) |  |
Gross profit | 631 |  | 1,633 |  |  |
Canada |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Depreciation and depletion | (3,589) | (2,729) | (10,520) | (8,513) |  |
Advanced projects | (384) |  | (384) |  |  |
Segment income (loss) | (9,067) | (6,869) | (13,964) | (11,303) |  |
Gross profit | 8 | (513) | 1,594 | 6,220 |  |
MSC |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Loss from investment in Minera Santa Cruz S.A. (note 8) | (328) | (4,973) | (6,775) | (7,450) |  |
Investment in MSC | 116,994 |  | 116,994 |  | 127,814 | $ 150,064
Canada |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 11,147 | 11,395 | 36,139 | 46,444 |  |
Long-Lived Assets | 78,770 |  | 78,770 |  | 84,119 |
Mexico |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 4,967 | 15,501 | 19,577 | 55,299 |  |
Long-Lived Assets | 25,671 |  | 25,671 |  | 26,524 |
United States |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 16,577 |  | 28,941 |  |  |
Long-Lived Assets | 137,400 |  | 137,400 |  | 127,617 |
Argentina |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Long-Lived Assets | 308,484 |  | 308,484 |  | 319,305 |
Argentina | MSC |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Investment in MSC | 117,000 |  | 117,000 |  | $ 127,800 |
Gold and silver sales |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 32,691 | 26,896 | 84,657 | 101,743 |  |
Gold and silver sales | Mexico |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 4,967 | 15,501 | 19,577 | 55,299 |  |
Gold and silver sales | U.S. |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 16,577 |  | 28,941 |  |  |
Gold and silver sales | Canada |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Revenue from gold and silver sales | 11,147 | 11,395 | 36,139 | 46,444 |  |
Production costs applicable to sales |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (23,584) | (17,740) | (59,432) | (62,078) |  |
Production costs applicable to sales | Mexico |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (3,878) | (8,561) | (14,609) | (30,367) |  |
Production costs applicable to sales | U.S. |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (12,156) |  | (20,798) |  |  |
Production costs applicable to sales | Canada |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (7,550) | (9,179) | (24,025) | (31,711) |  |
Exploration |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (13,695) | (8,231) | (23,717) | (29,715) |  |
Exploration | Mexico |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (2) | (296) | (2) | (1,596) |  |
Exploration | Los Azules |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (749) | (540) | (2,386) | (6,406) |  |
Exploration | U.S. |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | (4,253) | (1,039) | (6,155) | (4,190) |  |
Exploration | Canada |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |
Cost of goods and services sold | $ (8,691) | $ (6,356) | $ (15,174) | $ (17,523) |  |

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