Notes - Segment Information, Etc.
| Concept | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2023-09-01 to 2024-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Segment information | ||||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,290,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                276,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,578,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,578,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,681,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,578,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,759,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,759,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,526,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,759,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                409,716,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,344,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                5,439,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,996,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,661,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                743,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                363,691,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                188,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |