Note 6 - Property, Plant and Equipment, Net - Schedule of Property, Plant, and Equipment (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Property Plant and Equipment, Gross	$ 28,145,122	$ 26,754,937
Less: accumulated depreciation	13,718,616	11,541,494
Property plant & equipment, net	14,426,506	15,213,443
Land [Member]
Property Plant and Equipment, Gross	231,034	231,034
Building and Building Improvements [Member]
Property Plant and Equipment, Gross	3,510,659	3,222,243
Machinery and Equipment [Member]
Property Plant and Equipment, Gross	$ 24,403,429	$ 23,301,660