XML 81 R41.htm IDEA: XBRL DOCUMENT v2.4.1.9

401(k) PLAN (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
401(k) PLAN
Eligible age of employees to participate in the contribution plan	21 years
Required service period to participate in the contribution plan	1 year
Employer matching contribution of the first 6% of participant's contribution (as a percent)	50.00%tge_DefinedContributionPlanEmployerMatchingContributionRate
Percentage of participant's contribution matched by 50% of employer contribution	6.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Matching contribution to the plan	$ 158,000us-gaap_DefinedContributionPlanCostRecognized	$ 113,000us-gaap_DefinedContributionPlanCostRecognized	$ 98,000us-gaap_DefinedContributionPlanCostRecognized

X

- Definition

Represents the minimum period of service required for eligibility to participate in the defined contribution plan.

+ References

No definition available.

+ Details

Name:	tge_DefinedContributionPlanEligiblePeriodOfServiceForParticipation
Namespace Prefix:	tge_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the eligible age of employees to participate in the defined contribution plan.

+ References

No definition available.

+ Details

Name:	tge_DefinedContributionPlanEmployeeEligibilityAge
Namespace Prefix:	tge_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The rate at which the employer matches the specified percentage of employees' gross pay under a defined contribution plan.

+ References

No definition available.

+ Details

Name:	tge_DefinedContributionPlanEmployerMatchingContributionRate
Namespace Prefix:	tge_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration