Disclosure Of Earnings Per Share [Text Block]
| Concept | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|
| Disclosure of earnings per share [text block] |  | — | 
| Earnings per share [text block] | — | — | 
| Earnings per share [abstract] | ||
| Earnings per share [line items] | ||
| Basic earnings per share [abstract] | ||
| Basic earnings (loss) per share | 
                                                0. 7 7
                                                
                                             | 
                                                0.0329
                                                
                                             | 
| Diluted earnings per share [abstract] | ||
| Diluted earnings (loss) per share | 
                                                0. 7 7
                                                
                                             | 
                                                0.0329
                                                
                                             | 
| Adjustments to reconcile profit (loss) to numerator used in calculating earnings per share [abstract] | ||
| Profit (loss), attributable to owners of parent | 
                                                1,0 40
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                4 , 4 4 0
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
| Disclosure of depositary receipts [text block] | — | — | 
| Disclosure of depositary receipts [abstract] | ||
| Disclosure of depositary receipts [line items] |