Note 5 - Property and Equipment, Net (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Depreciation	$ 31,467	$ 31,203	$ 94,401	$ 95,887
Property, Plant and Equipment [Member]
Asset Impairment Charges			$ 0	$ 0