Note 1 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2026	Sep. 27, 2025	Sep. 26, 2026	Sep. 27, 2025
Net sales	$ 172,956	$ 126,249	$ 447,077	$ 330,726
CHINA
Net sales	46,109	14,162	77,233	45,261
MALAYSIA
Net sales	26,842	12,397	74,228	41,406
TAIWAN
Net sales	19,613	23,369	54,339	52,237
PHILIPPINES
Net sales	18,680	20,416	53,170	49,405
Rest of the World [Member]
Net sales	61,712	55,905	188,107	142,417
Systems [Member]
Net sales	90,694	56,245	210,796	131,530
Non-systems [Member]
Net sales	$ 82,262	$ 70,004	$ 236,281	$ 199,196

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details