Segment Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Sale of Product	$ 2,864,288	$ 2,337,488	$ 7,359,633	$ 7,001,179
Depreciation and Amortization	74,980	66,610	225,949	197,054
Segment Income (Loss)	307,050	236,462	113,884	(972,689)
Expenditures for Segment Assets	5,179	53,082	6,744	77,959
Segment Assets	14,961,858		14,961,858		$ 15,256,795
Radiochemical Products
Segment Reporting Information [Line Items]
Sale of Product	1,294,546	936,656	3,162,820	2,173,995
Cobalt Products
Segment Reporting Information [Line Items]
Sale of Product	544,989	97,849	1,075,275	687,177
Radiological Services
Segment Reporting Information [Line Items]
Sale of Product	54,760	280,692	171,048	1,086,098
Fluorine Products
Segment Reporting Information [Line Items]
Sale of Product	11,700	0	172,200	0
Operating Segments
Segment Reporting Information [Line Items]
Sale of Product	2,864,288	2,337,488	7,359,633	7,001,179
Depreciation and Amortization	71,489	64,216	215,846	189,870
Segment Income (Loss)	1,074,140	997,721	2,020,464	1,323,211
Expenditures for Segment Assets		53,082	1,565	77,959
Segment Assets	9,466,533		9,466,533		11,576,616
Operating Segments | Radiochemical Products
Segment Reporting Information [Line Items]
Sale of Product	1,294,546	936,656	3,162,820	2,173,995
Depreciation and Amortization	10,089	9,892	30,797	27,978
Segment Income (Loss)	542,814	331,988	929,162	680,990
Expenditures for Segment Assets		3,994		18,839
Segment Assets	748,527		748,527		511,381
Operating Segments | Cobalt Products
Segment Reporting Information [Line Items]
Sale of Product	544,989	97,849	1,075,275	687,177
Depreciation and Amortization	8,761	1,269	26,284	3,371
Segment Income (Loss)	342,724	38,517	542,394	353,639
Expenditures for Segment Assets		47,338		50,831
Segment Assets	1,175,804		1,175,804		3,369,828
Operating Segments | Nuclear Medicine Standards
Segment Reporting Information [Line Items]
Sale of Product	958,293	1,022,291	2,778,290	3,053,909
Depreciation and Amortization	15,842	15,954	47,820	47,246
Segment Income (Loss)	181,097	180,828	483,454	509,571
Expenditures for Segment Assets		1,750		6,700
Segment Assets	2,058,071		2,058,071		2,111,225
Operating Segments | Radiological Services
Segment Reporting Information [Line Items]
Sale of Product	54,760	280,692	171,048	1,086,098
Depreciation and Amortization	8,285	8,636	25,440	25,908
Segment Income (Loss)	34,145	482,414	5,684	(107,541)
Expenditures for Segment Assets
Segment Assets	90,263		90,263		106,374
Operating Segments | Fluorine Products
Segment Reporting Information [Line Items]
Sale of Product	11,700		172,200
Depreciation and Amortization	28,512	28,465	85,505	85,367
Segment Income (Loss)	(26,640)	(36,026)	59,770	(113,448)
Expenditures for Segment Assets			1,565	1,589
Segment Assets	5,393,868		5,393,868		5,477,808
Corporate Allocation
Segment Reporting Information [Line Items]
Sale of Product
Depreciation and Amortization	3,491	2,394	10,103	7,184
Segment Income (Loss)	(767,090)	(761,259)	(1,906,580)	(2,295,900)
Expenditures for Segment Assets	5,179		5,179
Segment Assets	$ 5,495,325		$ 5,495,325		$ 3,680,179