Property and Equipment (Details Textual)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) Per_Mcfe	Sep. 30, 2015 USD ($) Per_Mcfe	Sep. 30, 2016 USD ($) Per_Mcfe	Sep. 30, 2015 USD ($) Per_Mcfe	Dec. 31, 2015 USD ($)
Property and Equipment (Textual)
Depletion expense related to unproved oil and gas properties			$ 3,100,000		$ 3,200,000
Capitalized general and administrative expenses	$ 142,000	$ 133,000	431,000	$ 421,000
Depletion expense related to oil and gas properties	$ 368,000	$ 578,000	$ 1,200,000	$ 1,800,000
Depletion expense related to oil and gas properties (in dollars per Mcfe) | Per_Mcfe	0.60	0.87	0.68	0.94
Depreciation and amortization expense	$ 25,000	$ 34,000	$ 85,000	$ 106,000