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DEBT - Revolving Credit Facility (Details) - USD ($)
12 Months Ended
Dec. 28, 2022
Dec. 29, 2021
Dec. 30, 2020
Aug. 31, 2022
Debt Instrument [Line Items]        
Outstanding amount under credit facility $ 0      
Letters of credit outstanding 1,863,000 $ 603,000   $ 1,260,000
Interest costs incurred 82,000 $ 479,000 $ 531,000  
Revolving Credit Facility        
Debt Instrument [Line Items]        
Unamortized deferred financing costs 62,000      
Revolving Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Maximum borrowing capacity 50,000,000      
Letter of credit | Line of credit | Revolving Credit Facility        
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 15,000,000