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RELATED PARTY TRANSACTIONS (Details) (Entity Affiliated With Related Party, Chairman and Chief Executive Officer, USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Entity Affiliated With Related Party | Chairman and Chief Executive Officer
RELATED PARTY TRANSACTIONS
Amount of expenses incurred and paid	$ 16,137us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_CounterpartyNameAxis = mux_EntityAffiliatedWithRelatedPartyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mux_ChairmanAndChiefExecutiveOfficerMember	$ 20,480us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_CounterpartyNameAxis = mux_EntityAffiliatedWithRelatedPartyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mux_ChairmanAndChiefExecutiveOfficerMember

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- Details

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- Definition

Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

+ References

No definition available.

+ Details

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