Note 11 - Employee Benefit Plans - Plan Valuation Assumptions (Details) - Supplemental Employee Retirement Plan [Member]	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.25%	4.50%	2.75%
Rate of increase in compensation levels	3.00%	3.00%	3.00%

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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