Income Taxes, NOL and Tax Credit Carryforwards and Income Tax Uncertainties (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Abstract]
Unrecognized tax benefits	$ 0	$ 0
Federal [Member]
Income Taxes [Abstract]
Net operating loss carryforwards	536
Net operating loss carryforwards with indefinite carryforward period	536
Federal [Member] \| General Business Tax Credit Carryforward [Member]
Income Taxes [Abstract]
Tax credit carryforward	2,000
California [Member]
Income Taxes [Abstract]
Net operating loss carryforwards going to expire if not utilized	$ 21,800

Amount of operating loss carryforward, before tax effects going to expire if not utilized.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws that has an indefinite carryforward period.

+ References

No definition available.

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- References

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-3

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B

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