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v2.4.1.9

INCOME TAXES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Current income tax expense (benefit) [Abstract] |  |  |
Federal | $ 0 us-gaap_CurrentFederalTaxExpenseBenefit | $ 0 us-gaap_CurrentFederalTaxExpenseBenefit | $ 0 us-gaap_CurrentFederalTaxExpenseBenefit
State | 0 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 0 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 0 us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Total current income tax expense (benefit) | 0 useg_CurrentIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | 0 useg_CurrentIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | 0 useg_CurrentIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
Deferred income tax expense (benefit) [Abstract] |  |  |
Federal | 0 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 0 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (1,093,000)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State | 0 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 0 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (64,000)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Total deferred income tax expense (benefit) | 0 useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | 0 useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | (1,157,000)useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
Effective income tax reconciliation [Abstract] |  |  |
Federal statutory income tax rate | (711,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | (2,509,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | (4,164,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal benefit | (34,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (158,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (245,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Incentive stock options | 79,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost | 43,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost | 12,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Percent depletion carryover | (129,000)us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepletion | (174,000)us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepletion | (177,000)us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepletion
Valuation analysis | 612,000 useg_IncomeTaxReconciliationValuationAllowance | 2,717,000 useg_IncomeTaxReconciliationValuationAllowance | 3,512,000 useg_IncomeTaxReconciliationValuationAllowance
Other | 183,000 us-gaap_IncomeTaxReconciliationOtherAdjustments | 81,000 us-gaap_IncomeTaxReconciliationOtherAdjustments | (95,000)us-gaap_IncomeTaxReconciliationOtherAdjustments
Total deferred income tax expense (benefit) | 0 useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | 0 useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations | (1,157,000)useg_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
Deferred tax assets [Abstract] |  |  |
Net operating loss | 10,382,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 6,930,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |
Derivative instruments | 0 us-gaap_DeferredTaxAssetsDerivativeInstruments | 96,000 us-gaap_DeferredTaxAssetsDerivativeInstruments |
Asset retirement obligation | 404,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations | 294,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations |
Stock based compensation | 248,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 228,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost |
Deferred compensation | 439,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits | 385,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits |
Alternative minimum tax credit | 706,000 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax | 706,000 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax |
Contribution carryover | 42,000 us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards | 37,000 us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards |
Equity investments | 629,000 us-gaap_DeferredTaxAssetsInvestments | 643,000 us-gaap_DeferredTaxAssetsInvestments |
Percentage depletion carryover | 2,402,000 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 2,421,000 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |
Total deferred tax assets | 15,252,000 us-gaap_DeferredTaxAssetsGross | 11,740,000 us-gaap_DeferredTaxAssetsGross |
Deferred tax liabilities [Abstract] |  |  |
Property and equipment | (8,351,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (5,446,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
State tax | (3,000)us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome | (9,000)us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome |
Marketable securities | 0 us-gaap_DeferredTaxLiabilitiesInvestments | (16,000)us-gaap_DeferredTaxLiabilitiesInvestments |
Total deferred tax liabilities | (8,354,000)us-gaap_DeferredIncomeTaxLiabilities | (5,471,000)us-gaap_DeferredIncomeTaxLiabilities |
Net deferred tax assets (liabilities) | 6,898,000 useg_DeferredTaxAssetsLiabilities | 6,269,000 useg_DeferredTaxAssetsLiabilities |
Less: Valuation Allowance | (6,898,000)us-gaap_DeferredTaxAssetsValuationAllowance | (6,269,000)us-gaap_DeferredTaxAssetsValuationAllowance |
Deferred tax liability | 0 us-gaap_DeferredTaxAssetsNet | 0 us-gaap_DeferredTaxAssetsNet |
Increase in deferred tax assets | 3,500,000 useg_IncreaseDecreaseInDeferredTaxAssets |  |
Increase in deferred tax liability | 2,900,000 useg_IncreaseDecreaseInDeferredTaxLiability |  |
Increase in net deferred tax assets | 629,000 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryovers | 29,600,000 us-gaap_OperatingLossCarryforwards |  |
Tax deductions for compensation expense | 2,800,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation |  |
Net operating loss carry back period | 2 years |  |
Net operating loss carry forward period | 20 years |  |
Adjustments for uncertain tax positions | 0 us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease |  |
Penalties and interest accrued related to uncertain tax positions | 0 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |  |
Federal [Member] |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryovers | $ 32,400,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_InternalRevenueServiceIRSMember |  |

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- Definition The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing and discontinued operations. + References No definition available. + Details
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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6509736 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 4: 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.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Paragraph Question 1-7 + Details
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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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