XML 18 R42.htm IDEA: XBRL DOCUMENT v2.4.1.9
Asset Retirement Obligations (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Asset Retirement Obligations Details    
Long-term reclamation liability - beginning of period      
Accretion of reclamation liability      
Long-term reclamation liability - end of period 83,350us-gaap_MineReclamationAndClosingLiabilityNoncurrent   
Retirement obligation asset - beginning of period      
Additional obligations incurred 83,350MBMI_AssetRetirementObligationLiabilitiesIncurredcurrent   
Amortization of retirement obligation asset      
Retirement obligation asset - end of period $ 83,350us-gaap_AssetRetirementObligation