Organization and Description of Business and Accounting Policies - Summary of Changes in Accumulated Other Comprehensive Income (Loss) - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Balance	$ (4,113)	$ 156	$ (4,048)
Other comprehensive income (loss)	(3,651)	(5,035)	4,200
Tax effect	733	766	4
Balance	(7,031)	(4,113)	156
Foreign Currency Translation
Balance	(2,297)	(1,547)	(88)
Other comprehensive income (loss)	(1,775)	(1,095)	(2,090)
Tax effect	542	345	631
Balance	(3,530)	(2,297)	(1,547)
Investments Available for Sale
Balance	(37)	(336)
Other comprehensive income (loss)	31	363	(406)
Tax effect	(5)	(64)	70
Balance	(11)	(37)	(336)
Defined Benefit Pension Plan | JAPAN
Balance	56	184	192
Other comprehensive income (loss)	16	(182)	(11)
Tax effect	(5)	54	3
Balance	67	56	184
Defined Benefit Pension Plan | SWITZERLAND
Balance	(1,835)	1,855	(4,152)
Other comprehensive income (loss)	(1,923)	(4,121)	6,707
Tax effect	201	431	(700)
Balance	$ (3,557)	$ (1,835)	$ 1,855