Income Taxes, NOL and Tax Credit Carryforwards and Income Tax Uncertainties (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Taxes [Abstract]
Unrecognized tax benefits	$ 0	$ 0
Federal [Member]
Income Taxes [Abstract]
Net operating loss carryforwards	3,100
Net operating loss carryforwards with indefinite carryforward period	2,700
Net operating loss carryforwards going to expire if not utilized	364
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	$ 23,000

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

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

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

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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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