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Note 6 - Property, Plant and Equipment, Net (Details Textual) - USD ($)		3 Months Ended		12 Months Ended
	May 16, 2024	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Aug. 30, 2024	Mar. 31, 2024	Jan. 02, 2024
Payments to Acquire Productive Assets				$ 2,204,527	$ 2,032,773
Depreciation				$ 2,695,987	$ 2,619,244
North 52nd Properties LLC [Member]
Payments to Acquire Productive Assets	$ 6,900,000	$ 6,900,000
Heany Industries, LLC [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment								$ 2,200,000	$ 2,234,200
Advanced Industrial Coatings LLC [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment						$ 1,100,000	$ 1,096,717
Common Class A [Member] \| Aerospace Tooling Machine [Member] \| Air Power Dynamics, LLC [Member]
Stock Issued During Period, Shares, Purchase of Assets (in shares)		741	7,317
Stock Issued During Period, Value, Purchase of Assets		$ 30,011	$ 150,000