v3.26.1
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 27, 2025
Dec. 28, 2024
Amount [Abstract]    
U.S. federal statutory tax rate $ (1,512) $ (2,570)
State and local income tax, net of federal income tax effect 57 17
Federal tax credits (209) (220)
State tax credits 0 (22)
Change in valuation allowance 1,630 2,573
Nondeductible meals and entertainment 38 38
Executive compensation limitation 0 24
Stock-based compensation 43 125
Changes in unrecognized tax benefits 16 5
Other items 10 1
Income tax provision (benefit) $ 73 $ (29)
Percent [Abstract]    
U.S. federal statutory tax rate 21.00% 21.00%
State and local income tax, net of federal income tax effect (0.79%) (0.14%)
Federal tax credits 2.90% 1.80%
State tax credits 0.00% 0.18%
Change in valuation allowance (22.63%) (21.02%)
Nondeductible meals and entertainment (0.53%) (0.31%)
Executive compensation limitation 0.00% (0.20%)
Stock-based compensation (0.59%) (1.02%)
Changes in unrecognized tax benefits (0.22%) (0.04%)
Other items (0.15%) (0.01%)
Income tax provision (benefit) (1.01%) 0.24%