Major Shareholders
| Concept | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| Major shareholders | |||||||||||
| Major shareholders | |||||||||||
| Name | 
                                                内藤 征吾
                                                
                                             | 
                                                日本生命保険相互会社
                                                
                                             | 
                                                髙林 彰
                                                
                                             | 
                                                鈴木 一隆
                                                
                                             | 
                                                クレステック従業員持株会
                                                
                                             | — | 
                                                栗沢 威臣
                                                
                                             | 
                                                冨永 尚志
                                                
                                             | 
                                                名古屋中小企業投資育成㈱
                                                
                                             | 
                                                ㈱日本カストディ銀行(信託口)
                                                
                                             | 
                                                ㈱豊橋印刷社
                                                
                                             | 
| Address | 
                                                東京都中央区
                                                
                                             | 
                                                東京都千代田区丸の内1-6-6
日本生命証券管理部内
                                                
                                             | 
                                                静岡県浜松市中央区
                                                
                                             | 
                                                静岡県浜松市中央区
                                                
                                             | 
                                                静岡県浜松市中央区東三方町69
                                                
                                             | — | 
                                                静岡県浜松市中央区
                                                
                                             | 
                                                静岡県浜松市浜名区
                                                
                                             | 
                                                愛知県名古屋市中村区名駅南1-16-30
                                                
                                             | 
                                                東京都中央区晴海1-8-12
                                                
                                             | 
                                                愛知県豊橋市嵩山町公護1-1
                                                
                                             | 
| Number of shares held | 
                                                51,600
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                162,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                310,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                160,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                341,691
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,672,891
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                44,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                100,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                306,400
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                71,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                125,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio (excluding treasury shares) | 
                                                0.0167
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0527
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1007
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0519
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1109
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.5428
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0143
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0325
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0994
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0231
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0406
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |