Note 4 - Investment and Business Consolidation	9 Months Ended
Sep. 30, 2023
Notes to Financial Statements
Business Combination Disclosure [Text Block]	(4) Investment and Business Consolidation In 2021, the Company acquired all of the remaining membership interests of RadQual, making RadQual a wholly-owned subsidiary of the Company. As TI Services is a 50/50 joint venture between the Company and RadQual, TI Services is also a wholly-owned subsidiary of the Company. In June 2023, the Company executed an agreement to buy medical devices and related assets and intellectual property rights from AMICI, Inc. The Company has been working on transfers of U.S. Food and Drug Administration (FDA) 510K device registrations and startup of manufacturing. For the purposes of this report, the assets are included as part of our Nuclear Medicine Products segment. The Company plans for the assets to later be part of a fifth division of the Company, “Medical Devices” that is planned to start during 2024.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
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-URI https://asc.fasb.org//1943274/2147479907/805-20-50-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 805
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//805/tableOfContent

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