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

No definition available.

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- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)(4)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

+ Details

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- Definition

Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Exploration

-URI http://asc.fasb.org/extlink&oid=6512329

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 18

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447

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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Details

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Equity Investment - Kinsey (Details Textual) (USD $)	12 Months Ended		1 Months Ended
Equity Investment - Kinsey (Details Textual) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Oct. 29, 2013
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	49.00%
Gain Loss On Equity Method Investment	$ (12,367)mbmi_GainLossOnEquityMethodInvestment	$ (542,908)mbmi_GainLossOnEquityMethodInvestment
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total		12,367
Kinsey [Member]
Schedule of Equity Method Investments [Line Items]
Gain Loss On Equity Method Investment	(542,908)	(542,908)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total		12,367
Accrued exploration costs	478,014
Equity Exchange Agreement [Member]
Schedule of Equity Method Investments [Line Items]
Shares issued for equity purchase			5,000,000
Shares issued for equity purchase, value			$ 500,000
Share Price			$ 0.10
Noncontrolling Interest, Ownership Percentage by Parent			25.00%