Income Taxes - Effective Tax Rate Differs from the Statutory Federal Income Tax Rate (Details)	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Company's effective tax rate differs from the statutory federal income tax rate
Income tax provision at statutory rate	21.00%	21.00%
State income taxes, net of federal benefit	3.30%	3.20%
Permanent differences	(0.30%)	(0.30%)
Stock-based compensation	(4.90%)	(1.40%)
Rate change impact	0.30%	(0.90%)
Research and development credits	(0.50%)	1.30%
Change in valuation allowance	(19.90%)	(24.00%)
Foreign rate differential	(0.50%)	(0.70%)
Other	0.70%	1.00%
Effective tax rate	(0.80%)	(0.80%)