Note J - Equipment and Leasehold Improvements - Summary of Equipment and Leasehold Improvements (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, plant, and equipment, gross		$ 1,135,082	$ 1,053,043
Less accumulated depreciation and amortization		(1,027,669)	(983,875)
Total	$ 94,170	107,413	69,168
Equipment [Member]
Property, plant, and equipment, gross		825,058	831,784
Furniture and Fixtures [Member]
Property, plant, and equipment, gross		225,978	164,079
Software Development [Member]
Property, plant, and equipment, gross		49,143	32,045
Leasehold Improvements [Member]
Property, plant, and equipment, gross		$ 34,903	$ 25,135

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
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-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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