Description Of Business And Significant Accounting Policies (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Description Of Business And Significant Accounting Policies [Abstract]
Material natural gas imbalances	$ 0		$ 0		$ 0
Methane gas revenue			0	$ 0
Unevaluated properties	552,000		$ 552,000		$ 552,000
Current cost discount			10.00%
Impairment	$ 632,000	$ 7,189,000	$ 2,718,000	$ 7,189,000