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. 30, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating losses	$ 13,268	$ 11,264
Research and development credits	4,225	3,904
Accruals and reserves	1,573	2,505
Deferred revenue	2,593	2,640
Property and equipment	237	283
Intangible assets	281	344
Section 174 research and experimental expenditures capitalization	2,544	1,500
Stock compensation	725	717
Other tax credits	1	1
Total deferred tax asset	25,447	23,158
Less: Valuation allowance	(25,357)	(23,078)
Total deferred tax assets, net	90	80
Deferred tax liabilities:
Goodwill	(116)	(104)
Total deferred tax liabilities	(116)	(104)
Net deferred tax liabilities	$ (26)	$ (24)