v3.26.1
Note 14 - Income Taxes - Reconciliation of Statutory Federal Income Tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Tax at statutory federal rate $ (3,001) $ (2,731)
Tax at statutory federal rate, percent 21.00%  
State tax—net of federal benefit $ 0 55
Research credits   363
State tax—net of federal benefit, percent 0.00%  
Stock options $ 266 319
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount 1 (93)  
Other $ (89) 10
Effective Income Tax Rate Reconciliation, Tax Credits Research 1 1.00%  
Change in valuation allowance $ (24,439) 2,860
Revaluation of Put Option Liability $ 276 (150)
Stock options, percent (2.00%)  
Expiration of NOL’s/credits due to ownership change $ 27,080 0
Other (89) 10
Provision for income taxes $ 0 $ 0
Other, percent 1.00%  
Change in valuation allowance, percent 171.00%  
Revaluation of Put Option Liability, percent (2.00%)  
Expiration of NOL’s/credits due to ownership change, percent (190.00%)  
Provision for income taxes, percent 0.00%