v3.26.3
Disclosure on Individual Items of the Consolidated Financial Statements - Schedule of Cost of Goods Sold (Details) - EUR (€)
€ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Schedule of Cost of Goods Sold [Line Items]    
Depreciation and amortization € 3,820 € 3,426
Total 14,198 21,277
Carrying amount of investment € 820  
Percentage of Other investments 33.00%  
Cost of sales [member]    
Schedule of Cost of Goods Sold [Line Items]    
Personnel expenses € 5,440 5,468
Cost of materials 4,156 12,307
Depreciation and amortization 3,290 2,904
Other expenses 1,313 599
Total 14,198 € 21,277
Markgröningen Verwaltungs [Member]    
Schedule of Cost of Goods Sold [Line Items]    
Carrying amount of investment € 32