Key Financial Data Of Reporting Company
| Concept | As at 2024-09-30 | 2024-04-01 to 2024-09-30 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|
| Key financial data of reporting company | ||||
| Business results of reporting company | ||||
| Net sales | — | 
                                                1,402,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,693,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | — | 
                                                -253,255,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -136,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) | — | 
                                                -254,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -80,517,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                1,230,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,205,123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Total number of issued shares | 
                                                9,666,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | — | 
                                                9,456,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | — | 
| Net assets | 
                                                227,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                429,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Total assets | 
                                                1,503,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,653,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividend paid per share | — |  | — |  | 
| Basic earnings (loss) per share | — | 
                                                -26.66
                                                
                                             | — | 
                                                -8.52
                                                
                                             | 
| Diluted earnings per share | — |  | — |  | 
| Equity-to-asset ratio | 
                                                0.149
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.260
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -477,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net cash provided by (used in) investing activities | — | 
                                                -104,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net cash provided by (used in) financing activities | — | 
                                                131,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and cash equivalents | 
                                                91,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |