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Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 27, 2021
Dec. 26, 2020
Mar. 28, 2020
Dec. 28, 2019
Payables and Accruals [Abstract]        
Compensation and benefits $ 10,520 $ 9,159    
Provision for customer rebates, claims and allowances 7,548 8,006    
Advanced customer deposits 4,323 3,140 $ 5,199 $ 4,685
Outstanding checks in excess of cash 2,672 2,094    
Other 3,375 3,566    
Accrued expenses $ 28,438 $ 25,965