Note 6 - Property, Plant and Equipment, Net (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Depreciation, Total		$ 2,619,244	$ 2,398,445
Common Class A [Member] | Aerospace Tooling Machine [Member] | Air Power Dynamics, LLC [Member]
Stock Issued During Period, Shares, Purchase of Assets (in shares)	7,317
Stock Issued During Period, Value, Purchase of Assets	$ 150,000