Disclosure Of Entity's Operating Segments [Text Block]
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 
|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | 
                                                3
                                                
                                             | — | — | — | — | — | 
| Disclosure of operating segments [text block] | — | — | — | — | — | — | 
| Disclosure of operating segments [abstract] | ||||||
| Disclosure of operating segments [line items] | ||||||
| Revenue | 
                                                1 500
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,267,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
| Tax expense (income) | 
                                                21,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
| Profit (loss) | 
                                                14 001
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                14 001
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                26,220,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                26,220,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Assets | — | — | 
                                                10 756
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                9,132,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Cash flows from (used in) operating activities | 
                                                12 937
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                24,663,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) investing activities | 
                                                17,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                209,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) financing activities | 
                                                13 542
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                15,859,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
| Disclosure of products and services [text block] | — | — | — | — | — | — | 
| Disclosure of products and services [abstract] | ||||||
| Disclosure of products and services [line items] | ||||||
| Disclosure of geographical areas [text block] | — | — | — | — | — | — | 
| Disclosure of geographical areas [abstract] | ||||||
| Disclosure of geographical areas [line items] | ||||||
| Disclosure of major customers [text block] | — | — | — | — | — | — | 
| Disclosure of major customers [abstract] | ||||||
| Disclosure of major customers [line items] |