Note 5 - Property and Equipment, Net (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Depreciation	$ 31,467	$ 31,981	$ 62,934	$ 64,684
Property, Plant and Equipment [Member]
Asset Impairment Charges			$ 0	$ 0