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RELATED PARTY (Details) (Eldorado, USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Dec. 31, 2014
Eldorado
     
Corporate general and administrative costs $ 1,500,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= mntg_EldoradoHoldCoLLCMember
   
Purchases amount charged     29,000us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= mntg_EldoradoHoldCoLLCMember
Payroll and other costs   $ 78,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= mntg_EldoradoHoldCoLLCMember