Segment Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sale of Product	$ 1,785,824	$ 1,698,732	$ 1,620,032	$ 3,390,409
Depreciation and Amortization	55,278	61,158	110,863	115,166
Segment Income (Loss)	(602,195)	(445,427)	(1,388,463)	(819,945)
Expenditures for Segment Assets	16,070	41,750	20,044	106,044
Segment Assets	11,799,605		11,799,605		$ 11,379,265
Operating Segments
Segment Reporting Information [Line Items]
Sale of Product	1,785,824	1,698,732	3,620,032	3,390,409
Depreciation and Amortization	56,354	59,559	108,411	111,967
Segment Income (Loss)	386,799	387,241	815,027	792,710
Expenditures for Segment Assets	16,070	41,750	20,044	106,044
Segment Assets	8,526,331		8,526,331		8,207,208
Operating Segments | Radiochemical Products
Segment Reporting Information [Line Items]
Sale of Product	558,817	400,948	1,172,397	783,193
Depreciation and Amortization	1,609	1,750	3,218	3,498
Segment Income (Loss)	106,998	96,373	225,153	159,471
Expenditures for Segment Assets	0	0	0	0
Segment Assets	275,907		275,907		267,920
Operating Segments | Cobalt Products
Segment Reporting Information [Line Items]
Sale of Product	84,643	191,869	304,066	505,655
Depreciation and Amortization	9,084	14,000	18,854	23,691
Segment Income (Loss)	34,933	106,289	154,994	309,654
Expenditures for Segment Assets	0	0	0	0
Segment Assets	1,681,160		1,681,160		1,414,240
Operating Segments | Nuclear Medicine Standards
Segment Reporting Information [Line Items]
Sale of Product	834,698	836,858	1,643,104	1,650,017
Depreciation and Amortization	2,343	4,153	4,488	8,453
Segment Income (Loss)	195,661	207,069	379,633	361,800
Expenditures for Segment Assets	0	2,881	198	2,881
Segment Assets	611,493		611,493		502,361
Operating Segments | Radiological Services
Segment Reporting Information [Line Items]
Sale of Product	302,534	233,080	495,333	361,067
Depreciation and Amortization	9,886	8,755	19,434	15,716
Segment Income (Loss)	124,298	112,233	239,824	159,827
Expenditures for Segment Assets	10,040	36,010	10,040	40,813
Segment Assets	160,274		160,274		171,354
Operating Segments | Fluorine Products
Segment Reporting Information [Line Items]
Sale of Product	0	0	0	0
Depreciation and Amortization	30,751	28,012	56,846	55,960
Segment Income (Loss)	(56,157)	(121,119)	(141,035)	(195,300)
Expenditures for Segment Assets	6,030	0	10,202	8,719
Segment Assets	5,754,983		5,754,983		5,801,627
Operating Segments | Transportation
Segment Reporting Information [Line Items]
Sale of Product	5,132	35,977	5,132	90,477
Depreciation and Amortization	2,681	2,889	5,571	4,649
Segment Income (Loss)	(18,934)	(13,604)	(43,542)	(2,742)
Expenditures for Segment Assets	0	2,859	0	53,631
Segment Assets	42,514		42,514		49,706
Corporate Allocation
Segment Reporting Information [Line Items]
Sale of Product	0	0	0	0
Depreciation and Amortization	(1,076)	1,599	2,452	3,199
Segment Income (Loss)	(988,994)	(832,669)	(2,203,490)	(1,612,655)
Expenditures for Segment Assets	0	$ 0	0	$ 0
Segment Assets	$ 3,273,274		$ 3,273,274		$ 3,172,057