Treasury Shares, Etc.
| Concept | As at 2023-09-30 | As at 2023-09-30 | 
|---|---|---|
| Treasury shares, etc. | ||
| Treasury shares, etc. | ||
| Name of shareholder | — | 
                                                川崎設備工業株式会社
                                                
                                             | 
| Address of shareholder | — | 
                                                名古屋市中区大須1-6-47
                                                
                                             | 
| Number of shares held in own name | 
                                                35,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                35,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of shares held in others' names | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Total number of shares held | 
                                                35,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                35,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio | 
                                                0.0030
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0030
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |