Issued Shares
| Concept | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|
| Issued shares | |||||||
| Issued shares | |||||||
| Number of shares | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                8,300,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                10,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                33,400
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                8,256,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of voting rights | — | 
                                                82,561
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
                                                82,561
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Description |  | — | 
                                                1単元(100株)未満の株式
                                                
                                             |  |  |  |  |