Note 13 - Segment Reporting - Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 27, 2025	Sep. 27, 2025	Sep. 28, 2024	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Revenue		$ 133,349	$ 127,091		$ 377,470	$ 391,982
Cost of revenue		42,822	39,403		120,464	123,335
Gross margin		90,527	87,688		257,006	268,647
Total operating expenses		92,061	80,161		246,860	221,981
Net income	$ 2,794	$ 2,794	$ 7,190	$ 7,190	$ 10,729	$ 44,617