Revenue - Summary of Revenue by Country (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 03, 2022	Apr. 04, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 48,121	$ 48,101
United States
Disaggregation of Revenue [Line Items]
Revenues	42,359	43,621
United Kingdom
Disaggregation of Revenue [Line Items]
Revenues	1,781	2,086
Canada
Disaggregation of Revenue [Line Items]
Revenues	1,670	1,609
All others
Disaggregation of Revenue [Line Items]
Revenues	$ 2,311	$ 785

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details