Statement Of Cash Flows [Abstract]
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operating activities | — | 
                                                18,620,209
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                42,750,007
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) investing activities [abstract] | |||||
| Interest received, classified as investing activities | — | 
                                                453,822
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                246,274
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) investing activities | — | 
                                                453,822
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                720,659
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) financing activities [abstract] | |||||
| Repayments of borrowings, classified as financing activities | — | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                24,209,370
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Dividends paid, classified as financing activities | — | 
                                                18,150,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                18,150,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Interest paid, classified as financing activities | — | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                200,516
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Cash flows from (used in) financing activities | — | 
                                                18,150,000
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                42,559,886
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | 
                                                924,031
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                910,780
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — | 
                                                12,978
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                14,292
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                15,499,951
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                14,588,898
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                13,692,410
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             |