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v3.25.1

Note 17 - Subsequent Events (Details Textual) € / shares in Units, $ in Thousands |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 25, 2025 EUR (€) € / shares shares | Feb. 12, 2025 EUR (€) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Sep. 30, 2025 € / shares | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Proceeds from Convertible Debt | € |  |  | € 7,000,000 | € 0 |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  | $ 27,656 | $ 20,000
Subsequent Event [Member] | Yorkville [Member] | Yorkville Commitment [Member] |  |  |  |  |  |  |
Proceeds from Convertible Debt | € |  | € 5,000,000 |  |  |  |  |
Subsequent Event [Member] | Yorkville [Member] | Omnibus Amendment to Transaction Documents [Member] |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger | 85.00% |  |  |  |  |  |
Proceeds from Convertible Debt | € | € 1,000,000 | € 1,000,000 |  |  |  |  |
Debt Instrument, Face Amount | € | € 3,000,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 12.00% |  |  |  |  |  |
Debt Instrument, Default Rate | 18.00% |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | € / shares | € 18.75 |  |  |  |  |  |
Convertible Preferred Stock [Member] | Yorkville [Member] | Forecast [Member] |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price (in EUR per share) | € / shares |  |  |  |  | € 1 |  |
Convertible Preferred Stock [Member] | Subsequent Event [Member] | Yorkville [Member] |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 1,242 |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in EUR per share) | € / shares | € 300 |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger | 85.00% |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price (in EUR per share) | € / shares | € 4 |  |  |  |  |  |

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