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v3.21.1

Note L - Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | 2020 |  |  | 2019 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Write- offs |  |  | Net Carrying Amount |
Trade name |  | $ | 130,000 |  |  | $ | (4,333 | ) |  | $ | 125,667 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |
Proprietary software |  |  | 420,000 |  |  |  | (42,000 | ) |  |  | 378,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Customer relationships |  |  | 930,000 |  |  |  | (51,667 | ) |  |  | 878,333 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Patents and patents pending |  |  | 365,080 |  |  |  | (232,934 | ) |  |  | 132,146 |  |  |  | 380,080 |  |  |  | (210,694 | ) |  |  | (15,000 | ) |  |  | 154,386 |
Total |  | $ | 1,845,080 |  |  | $ | (330,934 | ) |  | $ | 1,514,146 |  |  | $ | 380,080 |  |  | $ | (210,694 | ) |  | $ | (15,000 | ) |  | $ | 154,386 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Years ending December 31 |  |  |  |
2021 |  | $ | 216,000 |
2022 |  |  | 215,000 |
2023 |  |  | 213,000 |
2024 |  |  | 209,000 |
2025 |  |  | 165,000 |
Thereafter |  |  | 496,146 |
Total |  | $ | 1,514,146 |

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