v3.26.1
Income Taxes - Reconciliation of U.S. federal statutory amount and rate to the effective income tax amount and rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Amount    
Tax benefit at the U.S. statutory rate $ (4,932) $ (7,134)
Federal research and development (671) (941)
Equity based compensation 481 632
Other 12 (4)
Tax on Income $ 0 $ 0
Tax Jurisdiction of Domicile [Extensible Enumeration] U.S. U.S.
Percentage    
Income tax computed at federal statutory rate (as percentage) 21.00% 21.00%
Federal research and development 2.90% 2.80%
Equity based compensation (2.00%) (1.90%)
Other (0.10%)  
U.S.    
Amount    
Change in valuation allowance $ 5,110 $ 7,447
Percentage    
Change in valuation allowance (as percentage) (21.80%) (21.90%)
Foreign    
Amount    
Entity dissolution   $ 373
Change in valuation allowance   $ (373)
Percentage    
Entity dissolution   (1.10%)
Change in valuation allowance (as percentage)   1.10%