v3.26.3
Debt Bond (Details)
6 Months Ended 12 Months Ended
Aug. 26, 2024
EUR (€)
Aug. 26, 2024
USD ($)
Jun. 30, 2026
EUR (€)
Jun. 30, 2025
EUR (€)
Dec. 31, 2025
EUR (€)
Dec. 31, 2024
EUR (€)
Debt Bond [Line Items]            
Interest rate 8.75% 8.75%        
Proceed from debt bond     € 1,667,638    
Repayment of debt bond     126,676 126,676 € 219,463 € 0
Debt bond     2,187,381   2,314,057  
Interest expense     98,373 92,733    
Accrued interest     34,310   355,711  
Enerfip Agreement [Member]            
Debt Bond [Line Items]            
Gross proceeds € 2,533,520 $ 1,647,637        
Proceed from debt bond     0 € 1,667,638    
Bank Loan [Member]            
Debt Bond [Line Items]            
Proceed from debt bond         1,667,638 € 865,882
Accrued interest     € 34,310   € 36,653