Notes - Segment Information, Etc.
| Concept | 2023-07-01 to 2023-09-30 | 2023-07-01 to 2023-09-30 | 2023-07-01 to 2023-09-30 | 2023-07-01 to 2023-09-30 | 2023-07-01 to 2023-09-30 | 2023-07-01 to 2023-09-30 | 2022-07-01 to 2022-09-30 | 2022-07-01 to 2022-09-30 | 2022-07-01 to 2022-09-30 | 2022-07-01 to 2022-09-30 | 2022-07-01 to 2022-09-30 | 2022-07-01 to 2022-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                404,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                404,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                284,221,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                446,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                305,749,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                446,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                136,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,249,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |