Note 12 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Intangible assets	$ 2,523	$ 4,274
Net operating loss carry forwards	13,332	13,829
Tax credit carry forwards	100,820	87,955
Accrued liabilities and reserves	26,638	23,249
Stock-based and deferred compensation	2,238	5,199
Other	6,791	5,162
Total deferred tax assets	152,342	139,668
Less: valuation allowance	(82,684)	(79,100)
Net deferred tax assets	69,658	60,568
Fixed assets	826	1,475
Unremitted earnings	720	620
Other	3,486	6,889
Total deferred tax liabilities	5,032	8,984
Net deferred taxes	64,626	51,584
Deferred tax assets	66,980	57,762
Deferred tax liabilities (included in Other long-term liabilities)	(5,032)	(8,984)
Net deferred taxes	64,626	51,584
Other Noncurrent Assets [Member]
Deferred tax assets	66,980	57,762
Other Noncurrent Liabilities [Member]
Total deferred tax liabilities	2,354	6,178
Deferred tax liabilities (included in Other long-term liabilities)	$ (2,354)	$ (6,178)