| Oct 31,
2021 | Oct 31,
2022 | Oct 31,
2023 |
|---|
| Cash and deposits | - | 3,988 | 4,588 |
|---|
| Supplies | - | 91 | 137 |
|---|
| Accounts receivable - trade | - | 297 | - |
|---|
| Advance payments to suppliers | - | 112 | 37 |
|---|
| Supplies | - | 91 | 137 |
|---|
| Prepaid expenses | - | 211 | 52 |
|---|
| Advance payments to suppliers | - | 112 | 37 |
|---|
| Prepaid expenses | - | 211 | 52 |
|---|
| Accounts receivable - other | - | 75 | 17 |
|---|
| Accounts receivable - other | - | 75 | 17 |
|---|
| Consumption taxes refund receivable | - | 146 | 197 |
|---|
| Consumption taxes refund receivable | - | 146 | 197 |
|---|
| Current assets | - | 4,919 | 5,028 |
|---|
| Current assets | - | 4,919 | 5,028 |
|---|
| Facilities attached to buildings | - | 59 | 473 |
|---|
| Accumulated depreciation and impairment | - | -59 | -18 |
|---|
| Facilities attached to buildings, net | - | - | 456 |
|---|
| Tools, furniture and fixtures | - | 35 | 59 |
|---|
| Accumulated depreciation and impairment | - | -28 | -31 |
|---|
| Tools, furniture and fixtures, net | - | 7 | 28 |
|---|
| Leased assets | - | 9 | 9 |
|---|
| Accumulated depreciation and impairment | - | -9 | -9 |
|---|
| Property, plant and equipment | - | 7 | 484 |
|---|
| Property, plant and equipment | - | 7 | 484 |
|---|
| Long-term accounts receivable - other | - | 6 | - |
|---|
| Guarantee deposits | - | 4 | 208 |
|---|
| Investments and other assets | - | 10 | 208 |
|---|
| Investments and other assets | - | 10 | 208 |
|---|
| Non-current assets | - | 17 | 692 |
|---|
| Assets | - | 4,936 | 5,720 |
|---|
| Lease liabilities | - | 19 | 6 |
|---|
| Accounts payable - other | - | 80 | 119 |
|---|
| Accrued expenses | - | 5 | 42 |
|---|
| Income taxes payable | - | 2 | 3 |
|---|
| Advances received | - | - | 20 |
|---|
| Deposits received | - | 10 | 11 |
|---|
| Asset retirement obligations | - | 25 | 44 |
|---|
| Current liabilities | - | 142 | 244 |
|---|
| Current liabilities | - | 142 | 244 |
|---|
| Lease liabilities | - | 12 | 6 |
|---|
| Asset retirement obligations | - | 54 | 186 |
|---|
| Deferred tax liabilities | - | - | 14 |
|---|
| Non-current liabilities | - | 66 | 206 |
|---|
| Liabilities | - | 208 | 450 |
|---|
| Share capital | - | 50 | 50 |
|---|
| Legal capital surplus | - | 4,106 | 5,113 |
|---|
| Other capital surplus | - | 2,051 | 3,058 |
|---|
| Capital surplus | - | 6,156 | 8,172 |
|---|
| Capital surplus | - | 6,156 | 8,172 |
|---|
| Retained earnings | - | -1,491 | -2,965 |
|---|
| Retained earnings brought forward | - | -1,491 | -2,965 |
|---|
| Retained earnings | - | -1,491 | -2,965 |
|---|
| Shareholders' equity | - | 4,715 | 5,257 |
|---|
| Share acquisition rights | - | 13 | 13 |
|---|
| Net assets | 6,140 | 4,728 | 5,270 |
|---|
| Liabilities and net assets | - | 4,936 | 5,720 |
|---|