Statement Of Cash Flows
| Concept | As at 2024-01-31 | 2023-08-01 to 2024-01-31 | As at 2023-07-31 | 2022-08-01 to 2023-01-31 | As at 2023-01-31 | As at 2022-07-31 | 
|---|---|---|---|---|---|---|
| Statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Subtotal | — | 
                                                306,357,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                170,941,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -4,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                303,875,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                200,892,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from operating activities | ||||||
| Cash flows from operating activities | ||||||
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -162,185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -61,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                389,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -145,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                322,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                17,068,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from facilities maintenance and investing activities | ||||||
| Cash flows from financing activities | ||||||
| Purchase of treasury shares | — | 
                                                -158,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -169,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from long-term borrowings | — | 
                                                250,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -21,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -21,459,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -111,794,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -405,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Redemption of bonds | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                104,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -540,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                11,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                263,307,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -16,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                1,179,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                916,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,099,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,116,734,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |