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 | 
                                                163,693,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                237,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                85,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                182,577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                186,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | 
                                                11,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                213,045,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                -46,110,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | 
                                                -6,122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,032,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | 
                                                18,719,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                -11,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -67,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in inventories | — | 
                                                -37,620,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -19,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | 
                                                306,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                378,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | 
                                                28,773,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                48,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | 
                                                -4,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | 
                                                27,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,083,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                290,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                392,309,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | 
                                                6,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                35,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | 
                                                -18,730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -17,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from operating activities | |||||||
| Cash flows from operating activities | |||||||
| Increase (decrease) in accounts payable - other | — | 
                                                44,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                25,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | — | 
                                                -308,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -264,123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -316,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -120,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Loan advances | — | 
                                                -384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                160,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | 
                                                -27,320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,340,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from facilities maintenance and investing activities | |||||||
| Cash flows from financing activities | |||||||
| Purchase of treasury shares | — | 
                                                -132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from long-term borrowings | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                586,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -232,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -520,795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | 
                                                -222,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -348,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -258,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -248,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | — | 
                                                1,533,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,792,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,041,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |