Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements Of Operations [Abstract]
Revenues	$ 15,700	$ 20,557	$ 17,062
Cost and expenses
Production costs and taxes	5,524	7,182	5,944
Depreciation, depletion, and amortization	2,912	3,403	2,527
General and administrative	2,059	2,613	2,324
Total cost and expenses	10,495	13,198	10,795
Income from operations	5,205	7,359	6,267
Other income (expense)
Net interest expense	(357)	(743)	(642)
(Loss) on derivatives		(142)	(407)
Gain on sale of assets	118	83	37
Total other (expense)	(239)	(802)	(1,012)
Income from continuing operations before income tax	4,966	6,557	5,255
Deferred income tax expense	(1,915)	(2,226)	(245)
Current income tax expense	(95)	(87)	(44)
Net income from continuing operations	2,956	4,244	4,966
(Loss) from discontinued operations, net of income tax benefit	(137)	(4,311)	(286)
Net income (loss)	$ 2,819	$ (67)	$ 4,680
Net income (loss) per share - Basic
Net income from continuing operations	$ 0.05	$ 0.07	$ 0.08
Net income (loss) from discontinued operations	$ 0.00	$ (0.07)	$ 0.00
Net income (loss) per share - Diluted
Net income from continuing operations	$ 0.05	$ 0.07	$ 0.08
Net income (loss) from discontinued operations	$ 0.00	$ (0.07)	$ 0.00
Shares used in computing earnings per share
Basic	60,842,413	60,778,356	60,701,660
Diluted	60,919,878	61,154,631	61,088,983