Note 13 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020
Operating Lease, Term Required to be Recorded on the Balance Sheet, Threshold (Month)	12 months
Operating Lease, Expense	$ 1.4	$ 1.4	$ 1.3

Amount of operating lease expense. Excludes sublease income.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration