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Note 10 - Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Securities to be Issued upon Exercise of Outstanding Options, Warrants and Rights |  |  | Weighted Average Exercise Price EUR |  |  | Weighted Average Remaining Contractual Term (Yrs) |  |  | Average Intrinsic Value EUR |
Outstanding at January 1, 2023 |  |  | 37,924 |  |  |  | 4.23 |  |  |  | 3.2 |  |  |  | – |
Granted during the period |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised during the period |  |  | 1,023 |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited during the period |  |  | 1,535 |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding December 31, 2023 |  |  | 35,119 |  |  |  | 4.41 |  |  |  | 2.0 |  |  |  | – |
Granted during the period |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised during the period |  |  | 981 |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited during the period |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2024 |  |  | 33,689 |  |  |  | 4.46 |  |  |  | 0.9 |  |  |  | – |
Exercisable at December 31, 2024 |  |  | 33,689 |  |  |  | 4.46 |  |  |  | 0.9 |  |  |  | – |

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