v3.26.1
Income Taxes - Income Tax (Provision) for Federal Statutory Corporate Income Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]    
U.S. federal statutory income tax rate at 21.0 % $ (955) $ (368)
State and local income tax, net of federal (national) income tax effect 4 22
Foreign tax effects 0 0
Effect of changes in tax laws or rates enacted in the current period 0 0
Effect of cross-border tax laws 0 0
Tax credits - R&D 0 (49)
Changes in valuation allowances 876 327
Nontaxable or nondeductible items 97 112
Intercompany Loan Interest 80 88
Stock-based Compensation 16 18
Nontaxable or nondeductible items - Other 1 6
Changes in unrecognized tax benefits 61 54
Tax Provision (Benefit) $ 83 $ 98
Effective Income Tax Rate Reconciliation, Percent    
U.S. federal statutory income tax rate at 21.0 % (as a percent) 21.00% 21.00%
State and local income tax, net of federal (national) income tax effect (as a percent) (0.10%) (1.30%)
Foreign tax effects (as a percent) 0.00% 0.00%
Effect of changes in tax laws or rates enacted in the current period (as a percent) 0.00% 0.00%
Effect of cross-border tax laws (as a percent) 0.00% 0.00%
Tax credits - R&D (as a percent) 0.00% 2.80%
Changes in valuation allowances (as a percent) (19.30%) (18.60%)
Nontaxable or nondeductible items (as a percent) (2.10%) (6.40%)
Intercompany Loan Interest (as a percent) (1.80%) (5.00%)
Stock-based Compensation (as a percent) (0.30%) (1.00%)
Nontaxable or nondeductible items - Other (as a percent) 0.00% (0.30%)
Changes in unrecognized tax benefits (as a percent) (1.40%) (3.10%)
Tax Provision (Benefit) - Continuing Ops: (as a percent) (1.90%) (5.60%)