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Note 3 - Liquidity and Going Concern Analysis (Details Textual) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents, at Carrying Value	€ 1,354	€ 7,412
Working Capital Deficit	(22,900)
Retained Earnings (Accumulated Deficit)	(321,428)	(386,454)
Net Income (Loss) Attributable to Parent	65,026	(45,707)
Net Cash Provided by (Used in) Operating Activities	€ (14,687)	€ (11,422)

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