Issued Shares
| Concept | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 
|---|---|---|---|---|---|---|---|
| Issued shares | |||||||
| Issued shares | |||||||
| Number of shares | 
                                                6,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                30,895,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                31,931,900
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,030,700
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of voting rights | — | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                308,951
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                308,951
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Description | 
                                                一単元(100株)未満の株式
                                                
                                             |  |  |  |  | — |  |