XML 56 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

PLANT AND EQUIPMENT, MINE DEVELOPMENT AND CONSTRUCTION IN PROGRESS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
PLANT AND EQUIPMENT, MINE DEVELOPMENT AND CONSTRUCTION IN PROGRESS |
Schedule of property and equipment |
|  | December 31, 2017 |  | December 31, 2016
Land |  | $ | 8,699 |  | $ | 8,699
Plant and equipment |  |  | 43,257 |  |  | 8,505
Construction-in-progress |  |  | 8,178 |  |  | 2,812
Subtotal |  | $ | 60,134 |  | $ | 20,016
Less: accumulated depreciation |  |  | (9,088) |  |  | (5,764)
|  | $ | 51,046 |  | $ | 14,252
Schedule of construction-in-progress costs |
|  | December 31, 2017 |  | December 31, 2016
Gold Bar project |  | $ | 6,011 |  | $ | —
Black Fox mine |  |  | 67 |  |  | —
El Gallo 2 project |  |  | 2,100 |  |  | 2,812
|  | $ | 8,178 |  | $ | 2,812

X
- Definition The tabular disclosure of construction-in-progress costs. + References No definition available. + Details
Name: | mux_ConstructionInProgressCostsTableTextBlock
Namespace Prefix: | mux_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration