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BASIS OF PRESENTATION (Details)	9 Months Ended	12 Months Ended	0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Oct. 08, 2014
Merger
Percentage of ownership interest			34.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
Revenue Recognition
Minimum period of prior notice to cancel supplemental agreement	30 days	30 days
Subsequent Event [Member] | Dawson Geophysical Company [Member]
Merger
Share consideration (in shares)			1.760us-gaap_StockIssuedDuringPeriodSharesAcquisitions / us-gaap_BusinessAcquisitionAxis = tge_DawsonGeophysicalCompanyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Reverse stock split ratio			0.33us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 / us-gaap_BusinessAcquisitionAxis = tge_DawsonGeophysicalCompanyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Percentage of ownership interest			66.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = tge_DawsonGeophysicalCompanyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Percentage of outstanding shares subject to approvaL by shareholders			66.67%tge_PercentageOfOutstandingShares / us-gaap_BusinessAcquisitionAxis = tge_DawsonGeophysicalCompanyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X

- Definition

Represents the minimum period of notice which is required to exercise the right to cancel the supplemental agreement setting forth the terms of project.

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Represents the percentage of outstanding shares subject to approval by shareholders

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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

-Publisher FASB

-Name Accounting Standards Codification

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Number of shares of stock issued during the period pursuant to acquisitions.

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

-Publisher SEC

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