Statement Of Changes In Equity [Abstract]
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||
| Statement of changes in equity [line items] | |||||||
| Increase (decrease) through appropriation of retained earnings, equity | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                643,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                643,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                195,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                195,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Reduction of issued capital | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                2 254
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                2 254
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                507,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                507,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |