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Income Taxes - Tax Effect of Temporary Differences and Carryforwards that Give Rise to Significant Portions of the Net Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 28, 2024 | Dec. 30, 2023
--- | --- | ---
Deferred tax assets: |  |
Net operating losses | $ 15,118 | $ 13,268
Research and development credits | 4,295 | 4,225
Accruals and reserves | 1,562 | 1,573
Deferred revenue | 2,277 | 2,593
Property and equipment | 240 | 237
Intangible assets | 223 | 281
Section 174 research and experimental expenditures capitalization | 2,927 | 2,544
Stock compensation | 574 | 725
Other tax credits | 1 | 1
Total deferred tax asset | 27,217 | 25,447
Less: Valuation allowance | (27,114) | (25,357)
Total deferred tax assets, net | 103 | 90
Deferred tax liabilities: |  |
Goodwill | (132) | (116)
Total deferred tax liabilities | (132) | (116)
Net deferred tax liabilities | $ (29) | $ (26)

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