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Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Net operating loss carryforwards | $ 6,492 | $ 4,453
Tax credits carryforwards | 1,297 | 887
Stock-based compensation | 56 | 29
Fixed assets/intangible assets | 111 | 99
Charitable contributions | 2 | 1
Capitalized research | 813 |
Accruals and other | 133 | 6
Gross deferred tax assets | 8,904 | 5,475
Valuation allowance | (8,886) | (5,475)
Deferred tax assets | 18 |
Deferred tax liabilities: |  |
Unrealized gain | 18 |
Deferred tax liabilities | 18 |
Net deferred tax asset |  |

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