Annual report pursuant to Section 13 and 15(d)

Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Details)

v3.20.4
Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Details) - USD ($)
1 Months Ended 12 Months Ended
Jan. 31, 2010
Jan. 02, 2021
Dec. 28, 2019
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]      
Minimum service period required to cover under plan   1 month  
Employer's match per dollar of participants salary   $ 0.50  
Employer's match percentage of participants salary   6.00%  
Contributions vest in annual installments   3 years  
Discretionary contributions   $ 558,000 $ 332,000
Highly Compensated Employees      
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]      
Participant deferral of base salary, percentage (up to) 90.00%    
Participant deferral of annual earned bonus, percentage (up to) 100.00%    
Deferred compensation plan vested 100.00%    
Employer contribution percentage of eligible participants eligible contribution 50.00%    
Percentage of individual eligible contribution to Deferred Compensation Plan account 2.00%    
Other non-current assets | Highly Compensated Employees      
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]      
Deferred compensation plan assets   747,000 671,000
Other non-current liabilities | Highly Compensated Employees      
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]      
Deferred compensation plan associated liabilities   $ 685,000 $ 674,000