v3.26.3
Share Capital (Details)
4 Months Ended 6 Months Ended 12 Months Ended
Apr. 05, 2024
EUR (€)
€ / shares
shares
Jun. 30, 2026
EUR (€)
€ / shares
shares
Jun. 30, 2026
EUR (€)
€ / shares
shares
Jun. 30, 2025
EUR (€)
shares
Dec. 31, 2025
EUR (€)
shares
Jun. 30, 2026
$ / shares
Mar. 31, 2026
$ / shares
shares
Share Capital [Line Items]              
Number of shares authorized   75,085,700 75,085,700        
Par value per share | € / shares   € 0.05 € 0.05        
Issuance of ordinary shares             1,000,000
Ordinary shares issued   2,791,405          
Proceeds of issuances | €     € 3,786,022      
Offering costs (in Euro) | €     522,420        
Stock-based compensation expense (in Euro) | €     67,220 € 63,682      
RSUs value forfeited       52,586      
RSUs value forfeited (in Euro) | €       € 11,315      
Unrecognized stock-based compensation (in Euro) | €     € 68,704   € 135,924    
Weighted-average period     6 months   1 year    
American Depositary Shares [Member]              
Share Capital [Line Items]              
Par value per share | $ / shares           $ 2.87 $ 3.25
Issuance of ordinary shares   1,558,281 1,558,281       5,000,000
Ordinary shares issued   558,281 7,791,405        
Restricted Stock Units [Member]              
Share Capital [Line Items]              
Issuance of ordinary shares 1,780,328            
RSUs value 1,780,328   1,727,742   371,749    
Number of shares issued on conversion 356,067            
Share-based payment reserve (in Euro) | €   € 0 € 0 € 32,911      
Grant restrict stock unit 1,780,328            
Restricted Stock Units [Member] | American Depositary Shares [Member]              
Share Capital [Line Items]              
Stock-based compensation expense (in Euro) | € € 383,064            
Grant price (in Euro per share) | € / shares € 1.08            
Ordinary Shares [Member]              
Share Capital [Line Items]              
Proceeds of issuances | €     € 3,786,022        
Share Capital [Member] | Ordinary Shares [Member]              
Share Capital [Line Items]              
Issuance of ordinary shares   62,877,105 62,877,105   55,085,700    
Ordinary shares, outstanding   62,877,105 62,877,105   55,085,700