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Income Taxes (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Valuation allowance | $ 68,993,000 | $ 67,376,000 |
Net operating loss carryforwards | 237,900,000 | 231,500,000 |
U.S. federal tax credit carryforwards | $ 2,100,000 | $ 2,200,000 |
Provision for income taxes description | provision for income taxes included i) $0.02 million of tax charge for equity related expenses; ii ) $0.42 million of tax charge for certain deferred tax adjustments; iii) $1.62 million of tax charge from changes in valuation allowances; iv) $.10 million tax charge for expiration of R&D credits; and v) $0.006 million of tax charge related to other permanent differences. | provision for income taxes included i) $0.48 million state tax benefit net of federal affect; ii) $0.61 million of tax benefit for equity related expenses; iii) $3.41 million of tax charge from valuation allowances due to the uncertainty of the realization of certain deferred tax assets; and iv) $0.002 million of tax charge related to other permanent differences. |
Effective tax rate | (0.00%) | 0.00% |
Unrecognized tax benefits | $ 0.00 | $ 0.00 |
Income taxes paid net |  | $ 0 | $ 0
State and Local Jurisdiction [Member] |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Net operating loss carryforwards | $ 237,900,000 |  |

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