Note 5 - Prepaid Expenses and Other Current Assets - Prepaid Expenses and Other Current Assets (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Prepaid clinical expenses	$ 952,574	$ 711,362
Insurance	265,944	436,859
Professional services	21,917	37,917
Dues and memberships	77,599	0
Other	30,645	70,363
Total	$ 1,348,679	$ 1,256,501