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Note I - Stock Option Plans (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted Averaged Exercise Price $ |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Aggregate Intrinsic Options Value $ |
Options outstanding January 1, 2023 |  |  | 3,059,989 |  |  |  | 2.36 |  |  |  | 6.38 |  |  |  | - |
Granted during 2023 |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Exercised during 2023 |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited or expired during 2023 |  |  | (23,000 | ) |  |  | - |  |  |  | - |  |  |  | - |
Options outstanding December 31, 2023 |  |  | 3,036,989 |  |  |  | 2.29 |  |  |  | 5.41 |  |  |  | - |
Exercisable, December 31, 2023 |  |  | 1,732,084 |  |  |  | 2.21 |  |  |  | 4.34 |  |  |  | - |
|  | Number of Options |  |  | Weighted Averaged Exercise Price $ |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Aggregate Intrinsic Options Value $ |
Options outstanding January 1, 2023 |  |  | 91,663 |  |  |  | 1.75 |  |  |  | 2.55 |  |  |  | 1,083 |
Granted during 2023 |  |  | 8,333 |  |  |  | 0.89 |  |  |  | 4.21 |  |  |  | - |
Exercised during 2023 |  |  | (8,333 | ) |  |  | 0.75 |  |  |  | - |  |  |  | - |
Options outstanding December 31, 2023 |  |  | 91,663 |  |  |  | 1.76 |  |  |  | 2.25 |  |  |  | 2,833 |
Exercisable, December 31, 2023 |  |  | 83,332 |  |  |  | 1.86 |  |  |  | 1.79 |  |  |  | 2,833 |
Restricted Stock [Member] |
Notes Tables |
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] |
|  | Number of Shares |  |  | Weighted Average Grant-Date Fair Value per Award |
Non-vested as January 1, 2023 |  |  | 435,293 |  |  |  | 1.18 |
Granted |  |  | 617,978 |  |  |  | 0.89 |
Vested |  |  | (694,658 | ) |  |  | - |
Cancelled |  |  | (30,676 | ) |  |  | - |
Non-vested as December 31, 2023 |  |  | 327,937 |  |  |  | 0.91 |

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