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Note 1 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Net sales	$ 95,342	$ 150,804	$ 307,657	$ 499,096
UNITED STATES
Net sales	16,512	23,604	48,327	58,097
CHINA
Net sales	12,770	19,689	43,586	69,193
Malaysia [Member]
Net sales	12,223	23,550	42,913	78,703
SINGAPORE
Net sales	9,051	13,693	34,044	38,387
PHILIPPINES
Net sales	10,451	19,983	32,001	77,132
Rest of the World [Member]
Net sales	34,335	50,285	106,786	177,584
Systems [Member]
Net sales	31,102	73,173	103,685	263,469
Non-systems [Member]
Net sales	$ 64,240	$ 77,631	$ 203,972	$ 235,627

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