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Business Segments - Schedule of Revenue Information by Product (Parenthetical) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 02, 2022 | Jul. 03, 2021 | Jul. 03, 2021 | Jul. 02, 2022 | Jul. 03, 2021
Entity Wide Information Revenue From External Customer [Line Items] |  |  |  |  |
Total revenues | $ 13,755 | $ 13,426 | $ 13,426 | $ 27,142 | $ 25,385
Distribution Rights [Member] |  |  |  |  |
Entity Wide Information Revenue From External Customer [Line Items] |  |  |  |  |
Revenue Recognized | 300 |  |  | 600 |
Service Contract Revenues |  |  |  |  |
Entity Wide Information Revenue From External Customer [Line Items] |  |  |  |  |
Total revenues | 402 |  | 764 | 375 | 674
Service Contract Revenues | Distribution Rights [Member] |  |  |  |  |
Entity Wide Information Revenue From External Customer [Line Items] |  |  |  |  |
Revenue Recognized | $ 357 |  | $ 0 | $ 634 | $ 111

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