Notes - Segment Information, Etc.
| Concept | 2024-02-01 to 2025-01-31 | 2024-02-01 to 2025-01-31 | 2024-02-01 to 2025-01-31 | 2024-02-01 to 2025-01-31 | 2024-02-01 to 2025-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                127,874,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                411,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                99,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                310,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                130,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||
| Depreciation | 
                                                2,439,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |