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Net number of non-option equity instruments granted to participants.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Note 9 - Shareholders' Equity (Details Textual) € / shares in Units, € in Thousands			1 Months Ended	12 Months Ended
	Dec. 23, 2024 € / shares	Nov. 21, 2021 shares	Dec. 31, 2020 € / shares shares	Dec. 31, 2025 EUR (€) € / shares shares	Dec. 31, 2024 EUR (€) € / shares shares	Dec. 31, 2023 shares	Dec. 31, 2022 shares	Sep. 05, 2025 € / shares	Aug. 13, 2025 € / shares shares	Aug. 12, 2025 € / shares shares	Dec. 22, 2024 € / shares
Preferred Stock, Shares Authorized				1,401	1,401				1,401	0
Preferred Stock, Par or Stated Value Per Share \| € / shares				€ 300	€ 300			€ 300	€ 300
Preferred Stock, Shares Issued				1,401	0
Preferred Stock, Shares Outstanding				1,401	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value \| €				€ 1,850	€ 1,938
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value \| €				(1,850)	€ (1,938)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value \| €				1,862
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value \| €				€ 1,862
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term				5 years 9 months 29 days	10 months 24 days	2 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)				5 years 9 months 29 days
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted		854
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period					0	266	213
CSOP [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures			41,157
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price \| € / shares			€ 50
CSOP [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period			1 year
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period			4 years
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	75
Ordinary Shares [Member]
Common Stock, Shares Authorized				120,000,000	120,000,000				120,000,000	4,300,000
Common Stock, Par or Stated Value Per Share \| € / shares	€ 0.02			€ 0.01	€ 0.01				€ 0.01	€ 0.02	€ 0.06
Common Stock, Shares, Issued				1,424,834	1,409,885
Common Stock, Shares, Outstanding				1,424,834	1,409,885
Ordinary Shares [Member] \| Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	75
High Voting Shares [Member]
Common Stock, Shares Authorized				40,000	40,000				40,000	53,400
Common Stock, Par or Stated Value Per Share \| € / shares	€ 0.5			€ 0.25	€ 0.25				€ 0.25	€ 0.5	€ 1.5
Common Stock, Shares, Issued				40,000	40,000
Common Stock, Shares, Outstanding				40,000	40,000
High Voting Shares [Member] \| Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	75