Annual report [Section 13 and 15(d), not S-K Item 405]

Provision for Income Taxes - Schedule of Effective Income Tax Rate Reconciliation Upon Adoption (Details)

v3.25.4
Provision for Income Taxes - Schedule of Effective Income Tax Rate Reconciliation Upon Adoption (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Amount    
Federal statutory rate $ (2,453)  
Tax credits    
Foreign tax credits (10)  
Nontaxable or nondeductible items, net (141)  
Stock-based compensation 1,529  
Changes in valuation allowances 1,080  
Domestic state and local income taxes, net of federal effect 18  
Foreign tax effects - China 10  
Provision for income taxes $ 33 $ 40
Percent    
Federal statutory rate 21.00% 21.00%
Tax credits    
Foreign tax credits 0.10%  
Nontaxable or nondeductible items, net 1.20%  
Stock-based compensation (13.10%) (11.70%)
Change in valuation allowance (9.30%) (16.30%)
Domestic state and local income taxes, net of federal effect (0.20%) (0.10%)
Foreign tax effects - China (0.10%)  
Provision for income taxes (0.30%) (0.10%)