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Long-Term Debt and Credit Arrangements (Notes Payable - Buildings) (Details) - USD ($)
$ in Thousands
Nov. 07, 2014
Dec. 25, 2021
Dec. 26, 2020
Debt Instrument [Line Items]      
Notes payable - buildings   $ 5,484 $ 5,900
Building - Adairsville      
Debt Instrument [Line Items]      
Debt instrument, term 10 years    
Notes payable - buildings $ 8,330    
Debt instrument, stated interest rate (in percent) 2.00%    
Periodic payment, principal $ 35    
Final payment on debt instrument $ 4,165    
Fixed interest rate 4.50%