Treasury Shares, Etc.
| Concept | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 
|---|---|---|---|---|
| Treasury shares, etc. | ||||
| Treasury shares, etc. | ||||
| Name of shareholder | 
                                                株式会社清光社
                                                
                                             | 
                                                日本空港ビルデング株式会社
                                                
                                             | 
                                                株式会社関東コーワ
                                                
                                             | — | 
| Address of shareholder | 
                                                東京都新宿区西新宿7-8-13
                                                
                                             | 
                                                東京都大田区羽田空港3-3-2
第1旅客ターミナルビル
                                                
                                             | 
                                                東京都港区新橋5-9-1
                                                
                                             | — | 
| Number of shares held in own name | 
                                                50,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                9,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                45,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                104,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of shares held in others' names | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Total number of shares held | 
                                                50,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                9,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                45,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                104,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio | 
                                                0.0005
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0004
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0011
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |