Segment Information (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Sale of Product	$ 7,621,934	$ 9,462,012
Depreciation and Amortization	415,181	392,992
Segment Income (Loss)	(2,240,810)	(5,950,438)
Segment Assets	12,041,905	11,930,805
Radiochemical Products
Sale of Product	1,677,291	1,811,935
Depreciation and Amortization	37,173	36,615
Segment Income (Loss)	94,165	141,324
Expenditures for Segment Assets	2,793	0
Segment Assets	229,516	196,065
Cobalt Products
Sale of Product	1,369,130	2,339,154
Depreciation and Amortization	94,957	105,113
Segment Income (Loss)	401,132	1,055,662
Expenditures for Segment Assets	31,742	3,193
Segment Assets	1,510,183	1,586,748
Nuclear Medicine Standards
Sale of Product	4,169,710	4,795,369
Depreciation and Amortization	21,439	16,936
Segment Income (Loss)	581,342	674,377
Expenditures for Segment Assets	4,429	86,149
Segment Assets	451,252	1,019,239
Radiological Services
Sale of Product	177,871	228,631
Depreciation and Amortization	10,399	10,399
Segment Income (Loss)	90,102	130,785
Expenditures for Segment Assets	255,000	0
Segment Assets	267,414	19,646
Fluorine Products
Sale of Product	0	0
Depreciation and Amortization	232,113	205,459
Segment Income (Loss)	(1,050,995)	(4,428,799)
Expenditures for Segment Assets	1,537,935	3,439,365
Segment Assets	6,239,235	4,922,409
Transportation
Sale of Product	227,932	286,923
Depreciation and Amortization	13,374	13,807
Segment Income (Loss)	(15,734)	13,911
Expenditures for Segment Assets	0	0
Segment Assets	29,734	39,112
Segment Total
Sale of Product	7,621,934	9,462,012
Depreciation and Amortization	409,455	388,329
Segment Income (Loss)	100,012	(2,412,740)
Expenditures for Segment Assets	1,831,899	3,528,707
Segment Assets	8,727,334	7,783,219
Corporate Allocation
Sale of Product	0	0
Depreciation and Amortization	5,726	4,663
Segment Income (Loss)	(2,340,822)	(3,537,698)
Expenditures for Segment Assets	3,414	0
Segment Assets	3,314,571	4,147,586
Consolidated Total
Sale of Product	7,621,934	9,462,012
Depreciation and Amortization	415,181	392,992
Segment Income (Loss)	(2,240,810)	(5,950,438)
Expenditures for Segment Assets	1,835,313	3,528,707
Segment Assets	$ 12,041,905	$ 11,930,805

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References+ Details

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 19

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.22)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=6519514

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

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-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 10, 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 20

-Article 9

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 87-21

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28, 29, 30

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.19)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph A7

-Appendix A

Reference 15: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References+ Details