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Revenue - Summary of Revenue by Country (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2022
Jul. 04, 2021
Jul. 03, 2022
Jul. 04, 2021
Disaggregation of Revenue [Line Items]        
Revenues $ 47,407 $ 41,189 $ 95,528 $ 89,290
United States        
Disaggregation of Revenue [Line Items]        
Revenues 38,550 36,612 80,908 80,233
United Kingdom        
Disaggregation of Revenue [Line Items]        
Revenues 1,443 2,367 3,224 4,453
Canada        
Disaggregation of Revenue [Line Items]        
Revenues 1,864 1,547 3,534 3,156
All others        
Disaggregation of Revenue [Line Items]        
Revenues $ 5,550 $ 663 $ 7,862 $ 1,448