XML 61 R42.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investment in American Shale Oil, LLC (Details 2) (AMSO, LLC [Member], USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
AMSO, LLC [Member] |  |  |  |
Operating expenses: |  |  |  |
General and administrative | $ 162 | $ 132 | $ 435 | $ 389
Research and development | 1,758 | 1,320 | 7,055 | 6,046
Loss from operations | 1,920 | 1,452 | 7,490 | 6,435
Other income |  |  | 41 |
Net loss | $ (1,920) | $ (1,452) | $ (7,449) | $ (6,435)

X
- Definition Equity method investment summarized financial information general and administrative expenses. + References No definition available. + Details
Name: | gne_EquityMethodInvestmentSummarizedFinancialInformationGeneralAndAdministrativeExpenses
Namespace Prefix: | gne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity Method Investment Summarized Financial Information Non Operating Income Expenses. + References No definition available. + Details
Name: | gne_EquityMethodInvestmentSummarizedFinancialInformationNonOperatingIncomeExpenses
Namespace Prefix: | gne_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity method investment summarized financial information operating income loss. + References No definition available. + Details
Name: | gne_EquityMethodInvestmentSummarizedFinancialInformationOperatingIncomeLoss
Namespace Prefix: | gne_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity method investment summarized financial information research and development expense. + References No definition available. + Details
Name: | gne_EquityMethodInvestmentSummarizedFinancialInformationResearchAndDevelopmentExpense
Namespace Prefix: | gne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of net income (loss) reported by an equity method investment of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(g)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33912-111571 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph bb -Article 1 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph g -Subparagraph 1, 2 -Article 4 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph w -Article 1 + Details
Name: | us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_OperatingExpensesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration