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Oil And Gas Properties (Schedule Of Oil And Gas Properties) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Oil And Gas Properties [Abstract]
Oil and gas properties	$ 6,685	$ 6,751
Unevaluated properties
Accumulated depreciation, depletion, and amortization	(2,771)	(2,366)
Oil and gas properties, net	$ 3,914	$ 4,385

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- Definition

Oil And Gas Property Unevaluated Properties

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Depletion of oil and gas property carried under the full cost method.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Oil and gas properties, gross, carried under the full cost method.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Oil and gas properties, net of depletion, carried under the full cost method.

+ References

No definition available.

+ Details

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