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Note 3 - Acquisition of Amorphous Materials (Details Textual) - USD ($)							3 Months Ended
	Sep. 25, 2026	Jul. 01, 2026	Jun. 04, 2026	Mar. 10, 2026	Jan. 21, 2026	Jan. 20, 2026	Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026	Mar. 31, 2026	Feb. 18, 2025
Common Stock, Par or Stated Value Per Share (in dollars per share)					$ 544,000					$ 0.01
Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease)							$ 196,633	$ 1,282,529
Share Price (in dollars per share)					$ 13.64						$ 2.47
Goodwill							19,315,177		$ 19,315,177
Amorphous Materials, LLC (“AML”) [Member]
Business Combination, Consideration Transferred					$ 9,249,432
Payments to Acquire Businesses, Gross					$ 7,000,111	$ 7,000,000
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount						3,000,000
Stock Issued During Period, Value, Acquisitions							1,622,879
Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease)							200,000
Business Combination, Remaining Potential Earnout							$ 0
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares)					39,897
Goodwill					$ 5,600,000				$ 5,561,256
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)	51,426	69,833	30,838	43,621
Stock Issued During Period, Value, Acquisitions	$ 513,000	$ 1,110,000	$ 543,000	$ 483,000
Amorphous Materials, LLC (“AML”) [Member] \| Maximum [Member]
Business Combination, Consideration Transferred						$ 10,000,000