Consolidated Statements Of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Oil and gas properties	$ 4,113	$ 5,631	$ 13,264
Methane facility	559	533	524
Total revenues	4,672	6,164	13,788
Cost and expenses
Production costs and taxes	3,421	4,224	5,994
Depreciation, depletion, and amortization	1,139	2,676	3,030
General and administrative	1,405	2,069	2,707
Impairment	2,805	14,526	2,796
Total cost and expenses	8,770	23,495	14,527
Net loss from operations	(4,098)	(17,331)	(739)
Other income (expense)
Net interest expense	(102)	(80)	(88)
Gain on sale of assets	1	41	33
Total other (expense)	(101)	(39)	(55)
Loss from operations before income tax	(4,199)	(17,370)	(794)
Deferred income tax benefit (expense)		(7,351)	12
Current income tax expense			(6)
Net loss	$ (4,199)	$ (24,721)	$ (788)
Net loss per share [Abstract]
Basic	$ (0.69)	$ (4.06)	$ (0.13)
Fully diluted	$ (0.69)	$ (4.06)	$ (0.13)
Shares used in computing earnings per share
Basic	6,091,028	6,084,241	6,084,241
Diluted	6,091,028	6,084,241	6,084,993