Statement Of Cash Flows
| Concept | 2024-08-01 to 2025-01-31 | As at 2025-01-31 | As at 2024-07-31 | As at 2024-07-31 | 2023-08-01 to 2024-07-31 | As at 2023-07-31 | 2022-08-01 to 2023-07-31 | As at 2022-07-31 | 
|---|---|---|---|---|---|---|---|---|
| Statement of cash flows | ||||||||
| Statement of cash flows | ||||||||
| Cash flows from operating activities | ||||||||
| Profit (loss) before income taxes | 
                                                1,660,517,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,253,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                435,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | 
                                                5,045,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in allowance for doubtful accounts | 
                                                5,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | 
                                                51,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                40,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in provision for bonuses | 
                                                41,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                60,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Loss (gain) on sale of property, plant and equipment | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | 
                                                -724,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -380,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -344,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | — | — | — | 
                                                -18,489,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -16,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | 
                                                234,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                151,051,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                49,711,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | 
                                                -1,344,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,276,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                140,174,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | 
                                                -32,913,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,632,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | 
                                                -100,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -8,753,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -6,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | 
                                                -1,492,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,325,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                118,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | 
                                                203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                28,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                25,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | 
                                                -48,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -40,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -15,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from operating activities | ||||||||
| Increase (decrease) in accounts payable - other | 
                                                1,336,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,937,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,352,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from operating activities | ||||||||
| Cash flows from facilities maintenance and investing activities | ||||||||
| Purchase of property, plant and equipment | 
                                                -9,248,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -11,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of property, plant and equipment | — | — | — | — | 
                                                1,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of investment securities | 
                                                -50,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Cash flows from investing activities | ||||||||
| Net cash provided by (used in) investing activities | 
                                                -59,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -15,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||||
| Proceeds from long-term borrowings | 
                                                1,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Repayments of long-term borrowings | 
                                                -11,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Net cash provided by (used in) financing activities | 
                                                1,253,314,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,213,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                613,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                -299,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                872,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                729,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | 
                                                3,680,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,979,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,979,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,107,693,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,377,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |