Note 15 - Subsequent Event	9 Months Ended
Jun. 30, 2025
Notes to Financial Statements
Subsequent Events [Text Block]	15. Subsequent Event On August 1, 2025, the Company acquired all the outstanding common stock of Geovox Security, Inc. (“Geovox”). Geovox, which can detect human traffic in vehicles with it Heartbeat Detector, will operate in the Company's Intelligent Industrial segment. T The acquisition purchase price for Geovox consists of (i) cash of $1.7 million, which included of $1.5 million paid at closing and $0.2 million to be paid June 1, 2027, and (ii) contingent earn-out payments of up to $3.3 million over a four-year period. The contingent payments, if any, will be derived from certain eligible revenue that may be generated during the four-year earn-out period.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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