Represents the additional extended lease term of the lease agreement.

No definition available.

Name:	mntg_LeaseAgreementAdditionalExtendedLeaseTerm
Namespace Prefix:	mntg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the area for leasing mineral rights under the lease agreement.

+ References

No definition available.

+ Details

Name:	mntg_LeaseAgreementAreaForLeasingMineralRight
Namespace Prefix:	mntg_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the initial lease term of the lease agreement.

+ References

No definition available.

+ Details

Name:	mntg_LeaseAgreementInitialLeaseTerm
Namespace Prefix:	mntg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the aggregate bonus payment required to be paid to entity under the lease agreement.

+ References

No definition available.

+ Details

Name:	mntg_LeaseAgreementLeaseAggregateBonusPaymentRequired
Namespace Prefix:	mntg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the lease bonus payment received by the entity during the period.

+ References

No definition available.

+ Details

Name:	mntg_LeaseAgreementLeaseBonusPaymentReceived
Namespace Prefix:	mntg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the bonus payment per acre required to be paid to entity under the lease agreement.

+ References

No definition available.

+ Details

Name:	mntg_LeaseAgreementLeaseBonusPaymentRequiredPerAcre
Namespace Prefix:	mntg_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of royalty on the sale of any oil or gas retrieved by the lessee.

+ References

No definition available.

+ Details

Name:	mntg_RoyaltyRevenuePercentageOnSaleOfOilOrGas
Namespace Prefix:	mntg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

Name:	us-gaap_RoyaltyRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

LEASED MINERAL RIGHTS (Details) (USD $)	3 Months Ended		0 Months Ended	12 Months Ended
LEASED MINERAL RIGHTS (Details) (USD $)	Dec. 31, 2011	Jun. 30, 2011	May 10, 2011 Mountaineer acre	Dec. 31, 2012 Mountaineer	Dec. 31, 2011 Mountaineer
Leased mineral rights
Area for leasing mineral rights under lease agreement (in acres)			1,707
Initial lease term under lease agreement			5 years
Additional extended lease term under lease agreement			5 years
Lease bonus payment required by agreement (in dollars per acre)			1,265
Aggregate lease bonus payment required by agreement			$ 2,100,000
Percentage of royalty on the sale of any oil or gas retrieved by lessee			14.00%
Amount of lease bonus payment received	300,000	1,800,000			2,100,000
Royalty income recognized				$ 0	$ 0