Significant Accounting Policies - Revenue Recognition (Details) - USD ($)	12 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021	Dec. 25, 2020
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 34,921,000	$ 35,051,000	$ 33,385,000	$ 30,466,000
Marketing Incentive Program
Disaggregation of Revenue [Line Items]
Deferred revenue	0	0
Cost of sales	$ 0	$ 1,754,000	$ 1,245,000