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

Income Taxes - Reconciliation of the Federal Statutory Income Tax Rate to the Effective Income Tax Rate (Details)

v3.25.4
Income Taxes - Reconciliation of the Federal Statutory Income Tax Rate to the Effective Income Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
U.S. federal statutory income tax rate $ (4,909)    
State and local income taxes, net of federal income tax effect $ 76    
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration] stpr:TX    
R&D credits $ (701)    
Changes in valuation allowance 2,380    
Stock-based compensation 546    
Nondeductible compensation 953    
Other 72    
Changes in unrecognized tax benefits 191    
Other adjustments 239    
Provision (benefit) for income taxes $ (632) $ (588) $ 105
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
U.S. federal statutory income tax rate 21.00% 21.00% 21.00%
State and local income taxes, net of federal income tax effect (0.33%) 1.54% 1.43%
Stock-based compensation   (2.35%) (0.66%)
R&D credit 3.00% 1.58% 1.00%
Stock-based compensation (2.34%)    
Change in fair value   (1.73%) (1.40%)
Nondeductible compensation   (0.83%) (0.09%)
Nondeductible compensation (4.08%)    
Other (0.31%)    
Changes in valuation allowance (10.18%) (17.83%) (14.80%)
Goodwill impairment charge   0.00% (6.75%)
Changes in unrecognized tax benefits (0.82%)    
Other adjustments (1.01%) 0.23% 0.17%
Effective income tax rate 2.70% 1.61% (0.10%)
Other      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Foreign tax effects $ 84    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Foreign tax effects (0.36%)    
France      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Foreign tax effects $ (303)    
Changes in valuation allowance 956    
Other adjustments $ (216)    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Foreign tax effects 1.30%    
Changes in valuation allowance (4.09%)    
Other adjustments 0.92%