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Acquisitions - (Schedule of Acquisition Costs) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Jul. 03, 2021
Jun. 27, 2020
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]        
Acquisition costs $ 1,198 $ 0 $ 1,198 $ 0
DTS Acquisition        
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]        
Legal fees 341   341  
Appraisal fees 18   18  
Other (investment banker and insurance costs) 839   839  
Acquisition costs $ 1,198   $ 1,198