Revenue Recognition - Summary of Sales from Contracts with Customers Disaggregated by Business Segment and Geography (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 11,181,988	$ 9,661,942
Percent of total revenues	100.00%	100.00%
UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenues	$ 9,648,831	$ 8,198,872
Outside U.S.
Disaggregation of Revenue [Line Items]
Total revenues	1,533,157	1,463,070
Radiochemical Products
Disaggregation of Revenue [Line Items]
Total revenues	$ 6,045,767	$ 4,275,044
Percent of total revenues	54.00%	44.00%
Radiochemical Products | UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenues	$ 5,338,010	$ 3,774,471
Radiochemical Products | Outside U.S.
Disaggregation of Revenue [Line Items]
Total revenues	707,757	500,573
Cobalt Products
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,157,536	$ 1,354,517
Percent of total revenues	10.00%	14.00%
Cobalt Products | UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,137,066	$ 1,299,503
Cobalt Products | Outside U.S.
Disaggregation of Revenue [Line Items]
Total revenues	20,470	55,014
Nuclear Medicine Products
Disaggregation of Revenue [Line Items]
Total revenues	$ 3,978,685	$ 4,002,606
Percent of total revenues	36.00%	42.00%
Nuclear Medicine Products | UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenues	$ 3,173,755	$ 3,095,123
Nuclear Medicine Products | Outside U.S.
Disaggregation of Revenue [Line Items]
Total revenues	804,930	907,483
Fluorine Products
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 29,775
Percent of total revenues	0.00%	0.00%
Fluorine Products | UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 29,775
Fluorine Products | Outside U.S.
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0