Note 15 - Business Segment Information - Net Sales By Product Line (Details) - USD ($) $ in Thousands	12 Months Ended
Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Revenue	$ 590,601	$ 472,618	$ 455,713
Welded Wire Reinforcement [Member]
Revenue	358,334	294,129	290,423
PC Strand [Member]
Revenue	$ 232,267	$ 178,489	$ 165,290

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