Note 11 - Commitments and Contingencies - Schedule of Milestone Payments (Details) - Sarah Herzog Memorial Hospital License Agreement [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Milestone payment	$ 0	$ 0	$ 200,000	$ 0
End of Phase I Clinical Trials of Licensed Product [Member]
Milestone payment			100,000
End of Phase II Clinical Trials of Licensed Product [Member]
Milestone payment			250,000
End of Phase III Clinical Trials of Licensed Product [Member]
Milestone payment			250,000
First Commercial Sale of Licensed Product in U.S. [Member]
Milestone payment			500,000
First Commercial Sale of Licensed Product in Europe [Member]
Milestone payment			500,000
Annual Revenue Threshold [Member]
Milestone payment			$ 750,000