Note 14 - Business Segment Information - Net Sales And Long-lived Assets By Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Revenue	$ 172,653	$ 160,656	$ 332,577	$ 290,376
UNITED STATES
Revenue	172,112	158,984	331,332	287,758
Non-US [Member]
Revenue	$ 541	$ 1,672	$ 1,245	$ 2,618

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details