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Stock-Based Compensation - Stock-Based Compensation Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jul. 01, 2023 | Jul. 02, 2022 | Jul. 01, 2023 | Jul. 02, 2022
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense | $ 400 | $ 344 | $ 873 | $ 728
Cost of Revenues |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense | 34 | 60 | 95 | 120
Research and Development |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense | 52 | 32 | 104 | 61
Sales and Marketing |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense | 85 | 59 | 206 | 181
General and Administrative |  |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense | $ 229 | $ 193 | $ 468 | $ 366

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