Note 14 - Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Twelve Months Ended December 31, 2023									Twelve Months Ended December 31, 2022
	U.S.		Outside U.S.		Total Revenues		% of Total Revenues			U.S.		Outside U.S.		Total Revenues		% of Total Revenues
Theranostics Products	$	5,685,244	$	1,157,654	$	6,842,898		56	%	$	5,338,010	$	707,757	$	6,045,767		54	%
Cobalt Products		932,915		104,158		1,037,073		8	%		1,137,066		20,470		1,157,536		10	%
Nuclear Medicine Products		3,405,508		981,906		4,387,414		36	%		3,173,755		804,930		3,978,685		36	%
Fluorine Products		—		—		—		0	%		—		—		—		0	%
	$	10,023,667	$	2,243,718	$	12,267,385		100	%	$	9,648,831	$	1,533,157	$	11,181,988		100	%