XML 76 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Supplemental Oil And Gas Information (Schedule Of Results Of Operations From Oil And Gas Producing Activities) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Supplemental Oil And Gas Information [Abstract]      
Revenues $ 13,260us-gaap_ResultsOfOperationsRevenueFromOilAndGasProducingActivities $ 15,325us-gaap_ResultsOfOperationsRevenueFromOilAndGasProducingActivities $ 19,885us-gaap_ResultsOfOperationsRevenueFromOilAndGasProducingActivities
Production costs and taxes (4,876)us-gaap_ResultsOfOperationsExpenseOther (4,854)us-gaap_ResultsOfOperationsExpenseOther (5,610)us-gaap_ResultsOfOperationsExpenseOther
Depreciation, depletion and amortization (2,766)us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions (2,606)us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions (3,044)us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
Income from oil and gas producing activities $ 5,618us-gaap_ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts $ 7,865us-gaap_ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts $ 11,231us-gaap_ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts