CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2026	Dec. 27, 2024	Dec. 29, 2023
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (80,448)	$ (20,208)	$ 21,347
Defined benefit plans:
Net change in plan assets	460	(1,830)	(3,946)
Reclassification into other income (expense), net	78	(77)	(357)
Investments available for sale:
Change in unrealized gain	11	28	363
Reclassification into other income (expense), net	2	3
Foreign currency translation gain (loss)	22	(1,775)	(1,095)
Tax effect	(53)	733	766
Other comprehensive income (loss), net of tax	520	(2,918)	(4,269)
Comprehensive income (loss)	$ (79,928)	$ (23,126)	$ 17,078