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Note 8 - Shareholder's Equity (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant Date Price |
|  | Shares |  |  | Restricted stock awards |
Outstanding, December 31, 2023 |  |  | 235,172 |  |  | $ | 4.21 |
Granted to employees and directors |  |  | 29,675 |  |  |  | 5.56 |
Vested |  |  | (8,172 | ) |  |  | 4.02 |
Outstanding, December 31, 2024 |  |  | 256,675 |  |  |  | 4.38 |
Granted to employees and directors |  |  | 32,330 |  |  |  | 5.11 |
Vested |  |  | (29,675 | ) |  |  | 5.56 |
Outstanding December 31, 2025 |  |  | 259,330 |  |  |  | 4.34 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |
|  |  |  |  |  | Exercise Price |
|  | Shares |  |  | Per Option |
Options outstanding, December 31, 2023 |  |  | 292,766 |  |  | $ | 3.71 |
Exercised |  |  | (231,666 | ) |  |  | 3.59 |
Options outstanding, December 31, 2024 |  |  | 61,100 |  |  |  | 4.17 |
Options outstanding, December 31, 2025 |  |  | 61,100 |  |  |  | 4.17 |
Options exercisable, December 31, 2025 |  |  | 45,632 |  |  |  | 4.15 |
Share-Based Payment Arrangement, Activity [Table Text Block] |
|  |  | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices |  |  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contract Life (in years) |  |  | Aggregate Intrinsic Value |  |  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contract Life (in years) |  |  | Aggregate Intrinsic Value |
$3.99 | - | $4.23 |  |  |  | 61,100 |  |  | $ | 4.17 |  |  |  | 2.5 |  |  | $ | 16,000 |  |  |  | 45,632 |  |  | $ | 4.15 |  |  |  | 2.42 |  |  | $ | 13,000 |

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