Note 2 - Net Income Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Net income	$ 61,131	$ 259,061	$ 178,882
Shares used in basic Net income per share (in shares)	137,623	137,694	137,321
Dilutive effect of employee equity incentive plans (in shares)	699	2,096	3,346
Shares used in diluted Net income per share (in shares)	138,322	139,790	140,667
Basic (in dollars per share)	$ 0.44	$ 1.88	$ 1.3
Diluted (in dollars per share)	$ 0.44	$ 1.85	$ 1.27