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Summary of Significant Accounting Policies (Fair Market Value and Classification of Derivative Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 25, 2020
Accounting Policies [Abstract]    
Derivative, Notional Amount $ 54,000  
Foreign Currency Fair Value Hedge Asset at Fair Value 239 $ 114
Foreign Currency Fair Value Hedge Liability at Fair Value (350) (98)
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net $ (111) $ 16