XML 67 R20.htm IDEA: XBRL DOCUMENT
v2.4.0.6

COMPARATIVE FIGURES | 9 Months Ended
--- | ---
Sep. 30, 2012
COMPARATIVE FIGURES |
COMPARATIVE FIGURES |
NOTE 14 COMPARATIVE FIGURES Certain prior year information was reclassified to conform with the current year’s presentation.

X
- Details
Name: | mux_ComparativeFiguresDisclosureAbstact
Namespace Prefix: | mux_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the entire disclosure related to any material changes in classifications in the current financial statements from classifications in the prior year's financial statements to conform to the current year's presentation. + References No definition available. + Details
Name: | mux_ComparativeFiguresDisclosureTextBlock
Namespace Prefix: | mux_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration