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Note G - Furniture, Fixtures and Equipment - Summary of Furniture, Fixtures and Equipment (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Total $ 30,729 $ 44,976
Leasehold Improvements [Member]    
Furniture, fixtures and equipment 24,734 24,734
Office Furniture and Equipment [Member]    
Furniture, fixtures and equipment 174,147 134,947
Tools, Dies and Molds [Member]    
Furniture, fixtures and equipment 7,200 7,200
Trade Show Displays [Member]    
Furniture, fixtures and equipment 151,462 151,462
Computer and Software [Member]    
Furniture, fixtures and equipment 262,290 280,577
Tooling Safety Wand [Member]    
Furniture, fixtures and equipment 125,022 125,022
Tooling Equipment - STA and Wand [Member]    
Furniture, fixtures and equipment 11,100 11,100
EPI and IA Instruments [Member]    
Furniture, fixtures and equipment 82,363 82,363
STA Trials Instruments [Member]    
Furniture, fixtures and equipment 63,752 63,752
Furniture and Fixtures [Member]    
Furniture, fixtures and equipment 902,070 881,157
Less accumulated depreciation (871,341) (836,181)
Total $ 30,729 $ 44,976