Shareholdings
| Concept | As at 2024-06-30 | As at 2023-06-30 | 
|---|---|---|
| Shareholdings | ||
| Largest holding company | ||
| Details of deemed holdings of shares held for purposes other than pure investment | ||
| Issue | 
                                                川田テクノロジーズ㈱
                                                
                                             | — | 
| Number of shares | 
                                                42,053
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                42,053
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Carrying amount | 
                                                348,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                243,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Purpose of shareholding, overview of business alliance, quantitative effects of shareholding and reason for increase in number of shares | 
                                                退職給付信託財産としてみなし保有しており、当該信託財産の議決権の行使を指図する権限を有しております。
                                                
                                             | — | 
| Whether issuer of aforementioned shares holds reporting company's shares | 
                                                無
                                                
                                             | — |