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Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Income Taxes [Abstract] |  |
Unrealized derivative loss - current |  | $ 164
Total deferred tax assets (liabilities) - current |  | 164
Net operating loss carryforwards | 8,550 | 6,233
Oil and gas properties | (154) | 3,341
Property, Plant and Equipment | 963 | 430
Asset retirement obligation | 517 | 37
Tax credits | 158 | 36
Valuation allowance | (600) |
Total deferred tax assets (liabilities) - noncurrent | 9,434 | 10,077
Net deferred tax asset (liability) | $ 9,434 | $ 10,241

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