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Oil And Gas Properties (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Oil And Gas Properties [Abstract]
Depletion expense	$ 142,000	$ 163,000
Gain (loss) on asset retirement obligations	$ 2,000	$ 7,000

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- Definition

Gain (Loss) On Asset Retirement Obligation

+ References

No definition available.

+ Details

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Balance Type:	credit
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- References

No definition available.

+ Details

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- Definition

The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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