Annual report pursuant to Section 13 and 15(d)

Employee Benefit Programs - Employee Stock Purchase Plan (Details)

v3.24.0.1
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. 31, 2023
USD ($)
$ / shares
shares
Dec. 25, 2022
USD ($)
$ / shares
shares
Dec. 26, 2021
USD ($)
$ / shares
shares
Dec. 27, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares)           275,000 660,000
Total stock-based compensation cost | $       $ 6.3 $ 9.6 $ 6.6  
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     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)       136,190 63,841    
Number of shares available for future issuance under the plan (in shares)       269,395      
Risk-free interest rate         4.05% 0.31%  
Expected life       6 months 6 months 6 months  
Expected volatility (as a percent)         55.00% 53.94%  
Expected dividend rate       0.00% 0.00% 0.00%  
Awarded (in dollars per share) | $ / shares       $ 1.72 $ 0.99 $ 4.36  
Total stock-based compensation cost | $       $ 0.1 $ 0.1 $ 0.2  
Employee Stock Purchase Plan | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Risk-free interest rate       4.64%      
Employee Stock Purchase Plan | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Risk-free interest rate       5.46%      
Expected volatility (as a percent)       55.25%