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Note 16 - Subsequent Events	3 Months Ended
	Sep. 30, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	(16) Subsequent Events Effective November 9, 2023, the Company accepted a purchase order from a Romania-based company focused on research and innovation, specializing in the supply and integration of security and telecommunications technology systems (the “Purchaser”), under which the Purchaser has ordered, and the Company is required to deliver, seven TRACER 1000 ETDs. The systems are scheduled to be delivered over the next few months.

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- Definition

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.

+ References

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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