Consolidated Statement Of Cash Flows
| Concept | 2023-08-01 to 2024-07-31 | As at 2024-07-31 | 2023-08-01 to 2024-07-31 | 2022-08-01 to 2023-07-31 | As at 2023-07-31 | 2022-08-01 to 2023-07-31 | As at 2022-07-31 | 
|---|---|---|---|---|---|---|---|
| Consolidated statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                195,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                233,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                190,811,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | 
                                                18,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                16,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Amortization of goodwill | 
                                                1,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for doubtful accounts | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | 
                                                -15,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -10,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in provision for bonuses | 
                                                1,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | 
                                                -4,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | 
                                                204,894,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                230,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | 
                                                -76,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -67,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in inventories | 
                                                -2,637,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | 
                                                -14,231,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | 
                                                128,249,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                163,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | 
                                                -1,877,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -5,876,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | 
                                                15,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -28,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | 
                                                3,080,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | 
                                                -117,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -161,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of investment securities | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -110,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | 
                                                -117,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Proceeds from issuance of shares | 
                                                17,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of treasury shares | 
                                                -99,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -60,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | 
                                                17,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                27,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                1,108,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,080,875,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,070,383,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |