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Note F - Equipment and Leasehold Improvements - Summary of Equipment and Leasehold Improvements (Details) - USD ($) | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Property, plant, and equipment, gross | $ 1,036,925 | $ 1,336,029
Less accumulated depreciation and amortization | (969,174) | (1,195,831)
Total | 67,751 | 140,198
Equipment [Member] |  |
Property, plant, and equipment, gross | 791,140 | 1,016,802
Furniture and Fixtures [Member] |  |
Property, plant, and equipment, gross | 201,679 | 225,978
Software, Internally Developed [Member] |  |
Property, plant, and equipment, gross | 0 | 49,143
Leasehold Improvements [Member] |  |
Property, plant, and equipment, gross | $ 44,106 | $ 44,106

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