Note 2 - Basis of Presentation and Use of Estimates and Significant Accounting Policies - Useful Life of Property, Plant and Equipment (Details)	Dec. 31, 2025
Laboratory and Manufacturing Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Laboratory and Manufacturing Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years
Office Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Office Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years