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v3.26.1

Note 10 - Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
|  | Three Months Ended March 31, 2026 |  | Year Ended December 31, 2025
|  | Common Stock Issued |  | Held in Treasury |  | Common Stock Outstanding |  | Common Stock Issued |  | Held in Treasury |  | Common Stock Outstanding
Shares, beginning of year |  |  | 6,307,997 |  |  |  | (133,047 | ) |  |  | 6,174,950 |  |  |  | 5,454,639 |  |  |  | (81,584 | ) |  |  | 5,373,055 |
Stock-based compensation |  |  | 152,402 |  |  |  | — |  |  |  | 152,402 |  |  |  | 16,156 |  |  |  | — |  |  |  | 16,156 |
Stock issued for settlement of warrants |  |  | 214,462 |  |  |  | — |  |  |  | 214,462 |  |  |  | 837,202 |  |  |  | — |  |  |  | 837,202 |
Shares withheld for income taxes |  |  | (1,379 | ) |  |  |  |  |  |  | (1,379 | ) |  |  | — |  |  |  | — |  |  |  | — |
Repurchase of common stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (51,463 | ) |  |  | (51,463 | )
Shares, end of period |  |  | 6,673,482 |  |  |  | (133,047 | ) |  |  | 6,540,435 |  |  |  | 6,307,997 |  |  |  | (133,047 | ) |  |  | 6,174,950 |

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