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Note L - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Gross carrying amount | $ 1,845,080 | $ 380,080
Accumulated amortization | (330,934) | (210,694)
Net carrying amount | 1,514,146 | 154,386
Write-offs |  | (15,000)
Trade Names [Member] |  |
Gross carrying amount | 130,000 |
Accumulated amortization | (4,333) |
Net carrying amount | 125,667 |
Write-offs |  |
Proprietary Software [Member] |  |
Gross carrying amount | 420,000 |
Accumulated amortization | (42,000) |
Net carrying amount | 378,000 |
Write-offs |  |
Customer Relationships [Member] |  |
Gross carrying amount | 930,000 |
Accumulated amortization | (51,667) |
Net carrying amount | 878,333 |
Write-offs |  |
Patents [Member] |  |
Gross carrying amount | 365,080 | 380,080
Accumulated amortization | (232,934) | (210,694)
Net carrying amount | $ 132,146 | 154,386
Write-offs |  | $ (15,000)

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