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Description Of Business And Significant Accounting Policies (Narrative) (Details) | 12 Months Ended
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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 |

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(9)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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