| Sep 30,
2021 | Sep 30,
2022 | Sep 30,
2023 |
|---|
| Cash and deposits | - | 7,269 | 9,405 |
|---|
| Accounts receivable - trade | - | 1,007 | 1,129 |
|---|
| Merchandise | - | 84 | 321 |
|---|
| Operational investment securities | - | 2,979 | 1,334 |
|---|
| Work in process | - | 169 | 185 |
|---|
| Raw materials and supplies | - | 2 | 6 |
|---|
| Real estate for sale | - | 2,758 | 1,232 |
|---|
| Other | - | 596 | 525 |
|---|
| Operational investment securities | - | 2,979 | 1,334 |
|---|
| Allowance for doubtful accounts | - | -38 | -18 |
|---|
| Other | - | 596 | 525 |
|---|
| Current assets | - | 14,827 | 14,122 |
|---|
| Allowance for doubtful accounts | - | -38 | -18 |
|---|
| Current assets | - | 14,827 | 14,122 |
|---|
| Buildings and structures, net | - | 301 | 456 |
|---|
| Other, net | - | 97 | 212 |
|---|
| Property, plant and equipment | - | 398 | 669 |
|---|
| Goodwill | - | 3,526 | 3,591 |
|---|
| Other | - | 527 | 794 |
|---|
| Intangible assets | - | 4,053 | 4,386 |
|---|
| Investment securities | - | 679 | 627 |
|---|
| Investment securities | - | 679 | 627 |
|---|
| Deferred tax assets | - | 826 | 614 |
|---|
| Other | - | 835 | 780 |
|---|
| Allowance for doubtful accounts | - | -291 | -226 |
|---|
| Investments and other assets | - | 2,047 | 1,795 |
|---|
| Other | - | 835 | 780 |
|---|
| Allowance for doubtful accounts | - | -291 | -226 |
|---|
| Investments and other assets | - | 2,047 | 1,795 |
|---|
| Non-current assets | - | 6,498 | 6,851 |
|---|
| Assets | - | 21,330 | 20,973 |
|---|
| Share issuance costs | - | 5 | - |
|---|
| Deferred assets | - | 5 | - |
|---|
| Assets | - | 21,330 | 20,973 |
|---|
| Accounts payable - trade | - | 550 | 823 |
|---|
| Short-term borrowings | - | 2,982 | 2,272 |
|---|
| Outstanding claims | - | 8 | 4 |
|---|
| Provision for responaibility | - | 4 | 5 |
|---|
| Current portion of long-term borrowings | - | 1,034 | 997 |
|---|
| Short-term borrowings | - | 2,982 | 2,272 |
|---|
| Current portion of long-term borrowings | - | 1,034 | 997 |
|---|
| Asset retirement obligations | - | 4 | - |
|---|
| Income taxes payable | - | 314 | 457 |
|---|
| Income taxes payable | - | 314 | 457 |
|---|
| Contract liabilities | - | 1,323 | 1,259 |
|---|
| Other | - | 910 | 811 |
|---|
| Provision for bonuses | - | 30 | 11 |
|---|
| Current liabilities | - | 7,296 | 6,693 |
|---|
| Provision for point card certificates | - | 5 | 4 |
|---|
| provision for correction | - | 45 | 45 |
|---|
| Provision for loss on relocation | - | 245 | - |
|---|
| Provision for loss on business liquidation | - | 59 | - |
|---|
| Other | - | 910 | 811 |
|---|
| Current liabilities | - | 7,296 | 6,693 |
|---|
| Long-term borrowings | - | 1,840 | 2,079 |
|---|
| Bonds payable | - | 8 | - |
|---|
| Long-term borrowings | - | 1,840 | 2,079 |
|---|
| Deferred tax liabilities | - | 226 | 32 |
|---|
| Asset retirement obligations | - | 95 | 129 |
|---|
| Asset retirement obligations | - | 95 | 129 |
|---|
| Deferred tax liabilities | - | 226 | 32 |
|---|
| Non-current liabilities | - | 2,371 | 2,682 |
|---|
| Provision for share awards | - | 147 | 101 |
|---|
| Retirement benefit liability | - | - | 21 |
|---|
| Provision for retirement benefits for directors (and other officers) | - | - | 41 |
|---|
| Other | - | 55 | 274 |
|---|
| Non-current liabilities | - | 2,371 | 2,682 |
|---|
| Liabilities | - | 9,667 | 9,376 |
|---|
| Share capital | - | 13 | 13 |
|---|
| Capital surplus | - | 9,017 | 8,452 |
|---|
| Capital surplus | - | 9,017 | 8,452 |
|---|
| Retained earnings | - | 1,191 | 1,739 |
|---|
| Retained earnings | - | 1,191 | 1,739 |
|---|
| Treasury shares | - | -443 | -132 |
|---|
| Shareholders' equity | - | 9,778 | 10,073 |
|---|
| Valuation difference on available-for-sale securities | - | 399 | -13 |
|---|
| Valuation and translation adjustments | - | 406 | -4 |
|---|
| Foreign currency translation adjustment | - | 7 | 9 |
|---|
| Valuation and translation adjustments | - | 406 | -4 |
|---|
| Share acquisition rights | - | 10 | 10 |
|---|
| Net assets | 11,540 | 11,663 | 11,596 |
|---|
| Non-controlling interests | - | 1,469 | 1,517 |
|---|
| Net assets | 11,540 | 11,663 | 11,596 |
|---|
| Liabilities and net assets | - | 21,330 | 20,973 |
|---|