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Impairment and Closure Costs (Details)
12 Months Ended
Dec. 26, 2023
USD ($)
Dec. 27, 2022
USD ($)
restaurant
Dec. 28, 2021
USD ($)
restaurant
Impairment and Closure Costs      
Impairment and closure, net $ 275,000 $ 1,600,000 $ 734,000
Impairment of goodwill 0 0 0
Ongoing closure costs $ 300,000 600,000  
Gain on sale of land and building   $ 700,000  
Impairment And Closures, Three Restaurants [Member]      
Impairment and Closure Costs      
Number of Restaurants | restaurant   3  
Impairment And Closures, Two Restaurants [Member]      
Impairment and Closure Costs      
Asset Impairment Charges   $ 1,700,000 $ 700,000
Number of Restaurants | restaurant     2
Number of restaurants relocated | restaurant   2