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

Employee Benefit Programs - Employee Stock Purchase Plan (Details)

v3.25.0.1
Employee Benefit Programs - Employee Stock Purchase Plan (Details)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2022
shares
May 31, 2020
shares
Jul. 31, 2017
restaurant
shares
Dec. 29, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 25, 2022
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total stock-based compensation cost | $       $ 6.9 $ 6.8 $ 6.3
Employee Stock Purchase Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Maximum number of shares of the company's common stock that may be issued or transferred (in shares)     100,000 600,000    
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares) 350,000 150,000        
Maximum percentage of base compensation that can be contributed by the eligible team members (as a percent)     15.00%      
Estimated subscription date fair value (as a percent)     85.00%      
Requisite employment period to be eligible to participate in the plan     1 year      
Requisite working hours per week to be eligible to participate in the plan | restaurant     20      
Operational period of the plan     6 months      
Stock issued during period, shares, employee stock purchase plans (in shares)       42,592 136,190  
Number of shares available for future issuance under the plan (in shares)       226,803    
Risk-free interest rate ( as a percent)         5.46% 4.05%
Expected life       6 months 6 months 6 months
Expected volatility (as a percent)         55.25% 55.00%
Expected dividend rate (as a percent)       0.00% 0.00% 0.00%
Awarded (in dollars per share) | $ / shares       $ 0.93 $ 1.72 $ 0.99
Total stock-based compensation cost | $       $ 0.1 $ 0.1 $ 0.1
Employee Stock Purchase Plan | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Risk-free interest rate ( as a percent)       5.03%    
Expected volatility (as a percent)       55.25%    
Employee Stock Purchase Plan | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Risk-free interest rate ( as a percent)       3.98%    
Expected volatility (as a percent)       55.76%