Statement Of Income
| Concept | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of income | ||||||||||||
| Statement of income | ||||||||||||
| Net sales | ||||||||||||
| Net sales of completed construction contracts | — | 
                                                10,096,524,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                9,817,097,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Net sales | 
                                                18,841,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,132,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -709,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,556,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,015,689,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,269,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -769,772,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,878,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,110,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,181,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,355,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,647,796,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net sales of goods | — | 
                                                8,035,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                7,060,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Operating revenue | ||||||||||||
| Cost of sales | ||||||||||||
| Cost of sales of completed construction contracts | — | 
                                                7,615,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                7,093,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Cost of sales | — | 
                                                13,406,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                12,387,509,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Cost of goods sold | — | 
                                                5,791,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                5,294,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Cost of goods sold | ||||||||||||
| Operating expenses | ||||||||||||
| Selling, general and administrative expenses | — | 
                                                3,890,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,615,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Gross profit (loss) | — | 
                                                4,725,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4,490,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Operating profit (loss) | — | 
                                                835,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                874,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Non-operating income | ||||||||||||
| Interest income | — | 
                                                1,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Gross profit | ||||||||||||
| Gross profit (loss) on completed construction contracts | — | 
                                                2,481,174,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,723,620,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Ordinary profit (loss) | 
                                                908,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                908,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                408,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                92,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                407,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                958,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                375,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                545,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                958,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Selling, general and administrative expenses | ||||||||||||
| Extraordinary income | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                19,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Non-operating income | — | 
                                                92,797,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                94,178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Financial revenue | — | — | — | — | — | — | — | — | — | — | — | — | 
| Dividend income | — | 
                                                52,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                62,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Non-operating income | ||||||||||||
| Other | — | 
                                                8,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                6,624,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Non-operating expenses | ||||||||||||
| Interest expenses | — | 
                                                4,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Non-operating expenses | ||||||||||||
| Non-operating expenses | ||||||||||||
| Non-operating expenses | — | 
                                                19,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                10,185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Financial expenses | — | — | — | — | — | — | — | — | — | — | — | — | 
| Extraordinary losses | — | 
                                                10,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Impairment losses | — | 
                                                10,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Extraordinary income | ||||||||||||
| Gain on sale of non-current assets | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Gain on sale of investment securities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                18,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Profit (loss) before income taxes | — | 
                                                897,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                976,782,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Extraordinary losses | ||||||||||||
| Loss on retirement of non-current assets | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Income taxes - current | — | 
                                                234,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                250,839,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Income taxes - deferred | — | 
                                                52,998,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                67,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Income taxes | — | 
                                                287,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                318,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Profit (loss) | — | 
                                                610,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                658,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — |