CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
OPERATING EXPENSES
Professional, consulting and marketing fees	$ 253,249	$ 442,428
Extraction cost	366,282us-gaap_ExplorationExpense	755,094us-gaap_ExplorationExpense
Site development and reclamation cost	82,211mbmi_SiteDevelopmentCost	544,034mbmi_SiteDevelopmentCost
General and administrative	88,165us-gaap_GeneralAndAdministrativeExpense	200,577us-gaap_GeneralAndAdministrativeExpense
Depreciation and accretion	797us-gaap_Depreciation	66us-gaap_Depreciation
Total operating expenses	790,704us-gaap_OperatingExpenses	1,942,199us-gaap_OperatingExpenses
Loss from operations	(790,704)us-gaap_OperatingIncomeLoss	(1,942,199)us-gaap_OperatingIncomeLoss
OTHER INCOME (EXPENSE)
(Loss) on investment - W.G.B. Kinsey - Equity Method	(12,367)mbmi_GainLossOnEquityMethodInvestment	(542,908)mbmi_GainLossOnEquityMethodInvestment
Gain on deconsolidation, net of impairment of loan from MAB-C	387,244us-gaap_DeconsolidationGainOrLossAmount
Interest expense	(80,672)us-gaap_InterestExpenseDebt	(40,186)us-gaap_InterestExpenseDebt
Total other income (expense)	294,205us-gaap_NonoperatingIncomeExpense	(583,094)us-gaap_NonoperatingIncomeExpense
Loss before provision for income taxes	(496,500)	(2,525,293)
Provision for income taxes
Net loss	$ (496,500)us-gaap_NetIncomeLoss	$ (2,525,293)us-gaap_NetIncomeLoss
Loss per share - basic	$ 0.00	$ (0.02)
Weighted average number of shares outstanding - basic	140,401,185	137,214,303
Loss per share - diluted	$ 0.00	$ (0.02)
Weighted average number of shares outstanding - diluted	172,081,928	170,018,594

Amount of gain (loss) on equity method investment during the period.

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Represents site development costs which consist of labor, surveying, mapping, engineering, other site development and licensing as well as any development costs necessary to prepare site for mining operations.

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The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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The net result for the period of deducting operating expenses from operating revenues.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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