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Note 3 - Acquisition of Amorphous Materials (Details Textual) - USD ($)				2 Months Ended	3 Months Ended	9 Months Ended
	Mar. 10, 2026	Jan. 21, 2026	Jan. 20, 2026	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2025	Jun. 30, 2025	Feb. 18, 2025
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 544,000		$ 0.01	$ 0.01	$ 0.01		$ 0.01
Share Price (in dollars per share)		$ 13.64							$ 2.47
Goodwill				$ 19,315,177	$ 19,315,177	$ 19,315,177		$ 13,753,921
Amorphous Materials, LLC (“AML”) [Member]
Business Combination, Consideration Transferred		$ 9,168,912
Payments to Acquire Businesses, Gross		$ 7,000,111	$ 7,000,000			7,000,111	$ (0)
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount			3,000,000
Stock Issued During Period, Value, Acquisitions					1,027,080
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares)		39,897
Goodwill		$ 5,600,000		5,561,256	5,561,256	5,561,256
Business Combination, Acquiree's Revenue since Acquisition Date, Actual				1,000,000
Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual				$ 300,000
Business Combination, Acquisition-Related Cost, Expense					$ 100,000	$ 200,000
Amorphous Materials, LLC (“AML”) [Member] | Class A Common Stock Per Tranche [Member]
Business Combination, Contingent Consideration, Liability			$ 500,000
Amorphous Materials, LLC (“AML”) [Member] | Contingent Consideration Payments, Class A Common Stock [Member]
Stock Issued During Period, Shares, Acquisitions (in shares)	43,621		39,897
Stock Issued During Period, Value, Acquisitions	$ 482,000		$ 544,000
Amorphous Materials, LLC (“AML”) [Member] | Maximum [Member]
Business Combination, Consideration Transferred			$ 10,000,000

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