Disclosure Of Income Tax [Text Block]
| Concept | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 
|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — |  | — | — | — | 
| Major components of tax expense (income) [abstract] | ||||||
| Tax expense (income) | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                18,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                18,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                304,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                304,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |