Gas Reserves (Details) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Gas Reserves [Abstract]
Total Cumulative Gas Reserves Investment	$ 188,000,000
Cumulative Encaca Gas Reserves Investment	178,000,000
Cumulative Investment additional Jonah Wells	9,700,000	$ 8,200,000
Gas Reserves, Current	17,822,000	21,455,000	$ 20,020,000
Gas Reserves Noncurrent Gross	169,300,000	164,115,000	167,190,000
Gas Reserves Amortization	51,516,000	32,370,000	37,910,000
Total Gas Reserves	135,606,000	153,200,000	149,300,000
Deferred Taxes Related To Gas Reserves	23,042,000	33,037,000	18,551,000
Net investment in gas reserves	112,564,000	120,163,000	$ 130,749,000
Net gas reserves investment Jonah Wells	4,500,000	$ 6,500,000
Additional Jonah Wells- recovery rate per therm	$ 0.4725