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Lease Commitments - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 01, 2022
Dec. 26, 2020
Dec. 28, 2019
Leases [Abstract]      
Short-term lease expenses $ 345 $ 512  
Variable lease expenses 1,165 1,307  
Operating lease rent expenses 9,929 8,591  
Total operating lease costs $ 11,439 $ 10,410 $ 10,100