| Sep 30, 2017 | Sep 30, 2018 | Sep 30, 2019 | Sep 30, 2020 | Sep 30, 2021 | Sep 30, 2022 | Sep 30, 2023 |
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Cash and deposits | 2,208 | 6,826 | 6,820 | 7,308 | 6,163 | 5,935 | 6,007 |
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Accounts receivable - trade | 148 | 159 | 169 | 175 | 231 | 241 | 381 |
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Merchandise and finished goods | 146 | 127 | 203 | 145 | 322 | 363 | 297 |
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Work in process | 15 | 36 | 28 | 54 | 25 | 43 | 45 |
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Supplies | 3 | 4 | 1 | 6 | 15 | 29 | 24 |
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Accounts receivable - other | 1,122 | 1,359 | 1,508 | 1,594 | 2,002 | 2,198 | 2,430 |
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Prepaid expenses | 57 | 66 | 97 | - | - | - | - |
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Other | 30 | 19 | 74 | 153 | 878 | 814 | 757 |
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Accounts receivable - other | 1,122 | 1,359 | 1,508 | 1,594 | 2,002 | 2,198 | 2,430 |
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Allowance for doubtful accounts | -6 | -8 | -8 | -8 | -36 | -40 | -37 |
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Other | 30 | 19 | 74 | 153 | 878 | 814 | 757 |
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Current assets | 3,791 | 8,660 | 8,892 | 9,428 | 9,600 | 9,586 | 9,906 |
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Allowance for doubtful accounts | -6 | -8 | -8 | -8 | -36 | -40 | -37 |
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Current assets | 3,791 | 8,660 | 8,892 | 9,428 | 9,600 | 9,586 | 9,906 |
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Buildings and structures, net | - | - | - | 1,088 | 2,651 | 3,004 | 3,268 |
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Buildings, net | 639 | 647 | 708 | - | - | - | - |
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Land | - | - | - | - | 263 | 450 | 450 |
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Structures, net | 0 | 0 | 0 | - | - | - | - |
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Other, net | - | - | - | 86 | 152 | 125 | 108 |
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Vehicles, net | - | - | - | - | - | - | - |
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Property, plant and equipment | 696 | 708 | 839 | 1,173 | 3,065 | 3,581 | 3,828 |
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Tools, furniture and fixtures, net | 56 | 61 | 56 | - | - | - | - |
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Construction in progress | - | - | 75 | - | - | - | - |
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Property, plant and equipment | 696 | 708 | 839 | 1,173 | 3,065 | 3,581 | 3,828 |
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Goodwill | - | - | - | 66 | 2,878 | 2,827 | 2,496 |
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Software | 33 | 31 | 26 | 22 | 216 | 196 | 207 |
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Other | 72 | 55 | 23 | 7 | 1,589 | 1,251 | 927 |
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Intangible assets | 104 | 86 | 49 | 96 | 4,683 | 4,275 | 3,631 |
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Investment securities | 1 | 1 | 102 | 61 | 76 | 25 | 20 |
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Shares of subsidiaries and associates | - | - | 305 | - | - | - | - |
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Deferred tax assets | - | - | 205 | 212 | 332 | 446 | 605 |
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Leasehold and guarantee deposits | 368 | 398 | 450 | 493 | 1,451 | 1,593 | 2,044 |
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Investments in capital | 0 | 0 | 0 | - | - | - | - |
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Other | - | - | - | 22 | 71 | 66 | 107 |
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Distressed receivables | 0 | 0 | 0 | - | - | - | - |
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Allowance for doubtful accounts | -0 | -0 | -0 | -0 | - | - | - |
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Long-term prepaid expenses | 17 | 16 | 21 | - | - | - | - |
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Investments and other assets | 463 | 586 | 1,082 | 788 | 1,930 | 2,131 | 2,777 |
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Deferred tax assets | - | - | 205 | 212 | 332 | 446 | 605 |
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Leasehold and guarantee deposits | 368 | 398 | 450 | 493 | 1,451 | 1,593 | 2,044 |
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Other | - | - | - | 22 | 71 | 66 | 107 |
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Allowance for doubtful accounts | -0 | -0 | -0 | -0 | - | - | - |
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Investments and other assets | 463 | 586 | 1,082 | 788 | 1,930 | 2,131 | 2,777 |
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Non-current assets | 1,263 | 1,380 | 1,970 | 2,057 | 9,678 | 9,987 | 10,237 |
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Assets | 5,054 | 9,967 | 10,862 | 11,486 | 19,277 | 19,574 | 20,143 |
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Accounts payable - trade | 84 | 100 | 62 | 76 | 152 | 136 | 103 |
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Short-term borrowings | - | - | - | - | - | - | 754 |
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Accounts payable - other | 430 | 627 | 641 | 779 | 1,535 | 1,272 | 1,543 |
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Accounts payable - other | 430 | 627 | 641 | 779 | 1,535 | 1,272 | 1,543 |
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Short-term borrowings | - | - | - | - | - | - | 754 |
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Accrued expenses | 55 | 25 | 22 | - | - | - | - |
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Current portion of long-term borrowings | - | - | - | - | 364 | 363 | 363 |
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Income taxes payable | 284 | 798 | 596 | 248 | 606 | 591 | 171 |
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Accrued consumption taxes | - | - | - | 184 | 362 | 176 | 200 |
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Advances received | 990 | 1,135 | 1,152 | 1,336 | 3,898 | 4,142 | 4,264 |
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Deposits received | 73 | 114 | 132 | - | - | - | - |
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Provision for bonuses | 9 | 13 | 12 | 12 | 582 | 451 | 441 |
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Provision for bonuses | 9 | 13 | 12 | 12 | 582 | 451 | 441 |
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Other | 148 | 264 | 129 | 402 | 410 | 480 | 700 |
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Other | 148 | 264 | 129 | 402 | 410 | 480 | 700 |
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Current liabilities | 2,097 | 3,099 | 2,788 | 2,875 | 7,936 | 7,614 | 8,543 |
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Current liabilities | 2,097 | 3,099 | 2,788 | 2,875 | 7,936 | 7,614 | 8,543 |
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Provision for retirement benefits for directors (and other officers) | 71 | 73 | 67 | 69 | 70 | 71 | 73 |
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Long-term borrowings | - | - | - | - | 1,455 | 1,090 | 727 |
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Provision for retirement benefits | 54 | 65 | 82 | - | - | - | - |
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Provision for retirement benefits for directors (and other officers) | 71 | 73 | 67 | 69 | 70 | 71 | 73 |
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Asset retirement obligations | 237 | 261 | 282 | 350 | 844 | 907 | 968 |
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Retirement benefit liability | - | - | - | 100 | 108 | 115 | 124 |
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Non-current liabilities | 362 | 399 | 431 | 519 | 2,476 | 2,184 | 1,893 |
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Asset retirement obligations | 237 | 261 | 282 | 350 | 844 | 907 | 968 |
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Deferred tax liabilities | - | - | - | - | - | - | - |
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Non-current liabilities | 362 | 399 | 431 | 519 | 2,476 | 2,184 | 1,893 |
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Liabilities | 2,459 | 3,498 | 3,219 | 3,394 | 10,412 | 9,799 | 10,437 |
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Share capital | 13 | 1,415 | 1,415 | 1,423 | 1,431 | 1,431 | 1,438 |
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Legal capital surplus | 3 | 1,405 | 1,405 | - | - | - | - |
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Capital surplus | 3 | 1,405 | 1,405 | 1,413 | 1,421 | 1,421 | 1,428 |
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Capital surplus | 3 | 1,405 | 1,405 | 1,413 | 1,421 | 1,421 | 1,428 |
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Legal retained earnings | 0 | 0 | 0 | - | - | - | - |
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Retained earnings brought forward | 2,578 | 3,650 | 4,824 | - | - | - | - |
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Retained earnings | 2,578 | 3,650 | 4,824 | 5,443 | 6,378 | 7,266 | 7,173 |
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Retained earnings | 2,578 | 3,650 | 4,824 | 5,443 | 6,378 | 7,266 | 7,173 |
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Treasury shares | - | - | -0 | -215 | -385 | -385 | -380 |
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Shareholders' equity | 2,595 | 6,469 | 7,642 | 8,064 | 8,844 | 9,734 | 9,659 |
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Share acquisition rights | - | - | - | - | 11 | 33 | 44 |
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Remeasurements of defined benefit plans | - | - | - | 0 | 2 | 5 | 2 |
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Valuation and translation adjustments | - | - | - | 0 | 2 | 5 | 2 |
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Net assets | 2,595 | 6,469 | 7,640 | 8,091 | 8,865 | 9,774 | 9,706 |
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Share acquisition rights | - | - | - | - | 11 | 33 | 44 |
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Non-controlling interests | - | - | - | 28 | 8 | - | - |
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Net assets | 2,595 | 6,469 | 7,640 | 8,091 | 8,865 | 9,774 | 9,706 |
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Liabilities and net assets | 5,054 | 9,967 | 10,862 | 11,486 | 19,277 | 19,574 | 20,143 |
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