Note 3 - Property and Equipment - Property and Equipment, Net (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Property, plant, and equipment, gross	$ 453,000	$ 447,657
Less accumulated depreciation	(402,380)	(394,492)
Property and equipment, net	50,620	53,165
Medical Equipment [Member]
Property, plant, and equipment, gross	387,665	387,665
Office Warehouse Equipment [Member]
Property, plant, and equipment, gross	43,919	40,026
Warehouse and Production Equipment [Member]
Property, plant, and equipment, gross	$ 21,416	$ 19,996

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 360
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
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