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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