Disclosure Of Property, Plant And Equipment [Text Block]
| Concept | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | 
|---|---|---|---|
| Disclosure of property, plant and equipment [text block] | — | 
                                                12 Property, Plant and Equipment
                                                
                                             | — | 
| Disclosure of detailed information about property, plant and equipment [text block] | — | — | — | 
| Disclosure of detailed information about property, plant and equipment [abstract] | |||
| Disclosure of detailed information about property, plant and equipment [line items] | |||
| Reconciliation of changes in property, plant and equipment [abstract] | |||
| Property, plant and equipment | 
                                                11,800,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
                                                13,500,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             |