Description Of Business And Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) customer	Dec. 31, 2018 USD ($)
Description Of Business And Significant Accounting Policies [Line Items]
Unevaluated properties	$ 0	$ 0
Current cost discount	10.00%
Stock based compensation	$ 17,000	23,000
Federal net operating loss carryforwards	33,800,000
Deferred tax asset	65,000	130,000
Derivatives	$ 0	0
Customers | customer	2
Impairment	$ 0	0
Accounts receivable - noncurrent	65,000	130,000
Gain on sale of assets	45,000	33,000
Inventory	415,000	464,000
Allowance for doubtful accounts	0	0
Revenue	4,911,000	5,871,000
Natural Gas Imbalances [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Revenue	$ 0	$ 0
Customer A [Member] | Revenue [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Customer's percentage of risk	87.70%	85.60%
Customer B [Member] | Revenue [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Customer's percentage of risk	11.80%	13.80%
Customer C [Member] | Accounts Receivable [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Customer's percentage of risk	76.90%	84.40%
Two Customers [Member] | Accounts Receivable [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Customer's percentage of risk	86.00%	93.20%
Equipment [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Gain on sale of assets	$ 45,000
Proceeds from sale of equipment inventory	$ 150,000