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Note 6 - Property, Plant and Equipment, Net (Details Textual) - USD ($)		3 Months Ended
	May 16, 2024	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jan. 02, 2025	Sep. 30, 2024	Aug. 30, 2024	Jan. 02, 2024
Payments to Acquire Productive Assets		$ 412,603		$ 436,820
Depreciation		731,196		679,959
Common Class A [Member] \| Aerospace Tooling Machine [Member] \| Air Power Dynamics, LLC [Member]
Stock Issued During Period, Shares, Purchase of Assets (in shares)			741
Stock Issued During Period, Value, Purchase of Assets			$ 30,011
North 52nd Properties LLC [Member]
Payments to Acquire Productive Assets	$ 6,900,000		$ 6,900,000
Rahn Industries, Incorporated [Member]
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment		$ 1,400,000			$ 1,395,780
Heany Industries, LLC [Member]
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment				$ 2,200,000				$ 2,143,860
Advanced Industrial Coatings LLC [Member]
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment						$ 1,100,000	$ 1,096,717