Note 15 - Business Segment Information - Net Sales And Long-lived Assets By Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Revenue	$ 649,188	$ 826,832	$ 590,601
UNITED STATES
Revenue	643,156	820,641	583,458
Non-US [Member]
Revenue	$ 6,032	$ 6,191	$ 7,143