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Note 15 - Business Segment Information - Net Sales By Product Line (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Oct. 01, 2022
Revenue	$ 529,198	$ 649,188	$ 826,832
Welded Wire Reinforcement [Member]
Revenue	305,769	375,771	495,401
PC Strand [Member]
Revenue	$ 223,429	$ 273,417	$ 331,431

X

- Definition

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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