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Income Taxes, NOL and Tax Credit Carryforwards and Income Tax Uncertainties (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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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 |

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