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Condensed Consolidated Statements Of Operations (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Condensed Consolidated Statements Of Operations [Abstract]    
Revenues $ 4,314 $ 4,962
Cost and expenses    
Production costs and taxes 1,371 1,668
Depreciation, depletion, and amortization 794 709
General and administrative 513 759
Total cost and expenses 2,678 3,136
Net income from operations 1,636 1,826
Other income (expense)    
Interest expense (131) (187)
Loss on derivatives   (121)
Gain on sale of assets   34
Total other income (expenses) (131) (274)
Income from continuing operations before income tax 1,505 1,552
Income tax expense (527) (598)
Income from continuing operations 978 954
(Loss) from discontinued operations, net of income tax benefit (41) (81)
Net income $ 937 $ 873
Net income (loss) per share - Basic and Diluted    
Net income from continuing operations $ 0.02 $ 0.02
Net (loss) from discontinued operations $ 0.00 $ 0.00
Shares used in computing earnings per share    
Basic 60,842,413 60,737,413
Diluted 61,053,713 61,257,875