Note 11 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
Oct. 31, 2024	Oct. 31, 2023	May 30, 2024
K and K Unlimited [Member]
Lessee, Operating Lease, Monthly Rent	$ 18,000		$ 16,000
Operating Lease, Expense	218,000	$ 208,000
Elmec [Member] \| Royalty Payments [Member]
Related Party Transaction, Amounts of Transaction	$ 0	$ 24,000

Amount of transactions with related party during the financial reporting period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

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