Statement Of Cash Flows
| Concept | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2023-02-28 | 
|---|---|---|---|---|---|---|---|
| Statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                -507,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -387,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -411,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -323,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                9,582,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                58,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | 
                                                102,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                39,315,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                -48,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                255,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | 
                                                -6,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,277,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | 
                                                8,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in provision for bonuses | — | 
                                                1,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Loss (gain) on sale of property, plant and equipment | — | 
                                                -2,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                363,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -185,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in inventories | — | 
                                                40,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | 
                                                -136,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                28,624,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | 
                                                -137,878,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -28,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | 
                                                -12,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                31,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | 
                                                -13,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -402,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -28,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | 
                                                3,950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | 
                                                -8,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,255,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from operating activities | |||||||
| Cash flows from operating activities | |||||||
| Increase (decrease) in accounts payable - other | — | 
                                                -57,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -63,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                3,677,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of investment securities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                523,508,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -137,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                50,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from facilities maintenance and investing activities | |||||||
| Cash flows from financing activities | |||||||
| Proceeds from issuance of shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                334,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of treasury shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -32,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | 
                                                -119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from long-term borrowings | — | 
                                                48,808,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | 
                                                -204,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -210,752,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -105,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                95,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                15,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -70,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | — | 
                                                64,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                48,841,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |