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Employee Benefit Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended 102 Months Ended
Dec. 28, 2021
Dec. 29, 2020
Dec. 31, 2019
Dec. 28, 2021
Employee Benefit Plans [Line Items]        
Required employee age 21 years      
Percentage of participants contributions vested 100.00%      
Employer matching contribution 25.00%      
Participant deferred compensation percentage for match 4.00%      
Matching contribution expense $ 300 $ 100 $ 400  
ESPP        
Employee Benefit Plans [Line Items]        
Maximum employee salary percentage 15.00%     15.00%
Offering date percentage 85.00%      
Purchase date percentage 85.00%      
Number of shares available for issuance 750,000     750,000
Shares issued under ESPP 22,572     226,891
Shares remaining for future issuance 523,109     523,109
Risk-free interest rate 0.16%      
Expected term (average in years) 3 months      
Expected volatility 45.80%      
Expected dividend yield 0.00%      
Weighted-average fair value per share at grant date (USD per share) $ 1.92      
Compensation expense $ 44      
Other assets        
Employee Benefit Plans [Line Items]        
Deferred compensation plan asset 2,500 2,200   $ 2,500
Accrued expenses and other current liabilities        
Employee Benefit Plans [Line Items]        
Deferred compensation plan liability $ 500 $ 300   $ 500