XML 87 R73.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Variable Interest Entities (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule of Net Income Loss and Aggregate Net Funding Repaid or Provided by Company to Variable Interest Entity [Abstract] |  |  |  |
Aggregate funding repaid to (provided by) the Company, net |  | $ 950 | $ (266) | $ 4,126
CCE [Member] |  |  |  |
Schedule of Net Income Loss and Aggregate Net Funding Repaid or Provided by Company to Variable Interest Entity [Abstract] |  |  |  |
Net income (loss) |  | 201 | 763 | 2,080
Aggregate funding repaid to (provided by) the Company, net | $ 500 |  |  |
DAD [Member] |  |  |  |
Schedule of Net Income Loss and Aggregate Net Funding Repaid or Provided by Company to Variable Interest Entity [Abstract] |  |  |  |
Net income (loss) |  | $ (167) | $ (104) | $ (67)

X
- References No definition available. + Details
Name: | gne_ScheduleOfNetIncomeLossAndAggregateNetFundingRepaidOrProvidedByCompanyToVariableInterestEntityAbstract
Namespace Prefix: | gne_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of income (loss) from operations derived by the reporting entity during the period from the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph d -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5747-111685 + Details
Name: | us-gaap_VariableInterestEntityActivityBetweenVIEAndEntityOperatingIncomeOrLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=52262685&loc=SL6759159-111685 + Details
Name: | us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=gne_CitizensChoiceEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=gne_DadSalesLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |