Note 3 - Significant Accounting Policies - Useful Lives of Property and Equipment (Details)	Sep. 30, 2025
Computers and Software [Member]
Useful life (Year)	3 years
Laboratory Equipment [Member] | Minimum [Member]
Useful life (Year)	3 years
Laboratory Equipment [Member] | Maximum [Member]
Useful life (Year)	6 years 6 months
Furniture [Member[ | Minimum [Member]
Useful life (Year)	5 years
Furniture [Member[ | Maximum [Member]
Useful life (Year)	16 years 6 months
Manufacturing Equipment [Member] | Minimum [Member]
Useful life (Year)	2 years
Manufacturing Equipment [Member] | Maximum [Member]
Useful life (Year)	10 years