| Feb 28,
2018 | Feb 28,
2019 | Feb 29,
2020 | Feb 28,
2021 | Feb 28,
2022 | Feb 28,
2023 | Feb 29,
2024 |
|---|
| Profit (loss) before income taxes | -58 | 24 | 53 | 197 | -390 | -51 | -14,393 |
|---|
| Depreciation | 3 | 9 | 16 | 18 | 166 | 708 | 819 |
|---|
| Amortization of goodwill | - | - | - | - | 90 | 418 | 447 |
|---|
| Impairment losses | - | - | - | - | - | - | 14,473 |
|---|
| Subsidy income | - | - | - | - | -3 | -5 | -99 |
|---|
| Insurance claim income | - | - | - | - | - | - | -31 |
|---|
| Loss (gain) on valuation of investment securities | - | - | - | - | - | - | 32 |
|---|
| Increase (decrease) in provision for bonuses | - | - | 9 | 52 | 81 | -92 | 79 |
|---|
| Increase (decrease) in allowance for doubtful accounts | -0 | - | - | - | -17 | 2 | -3 |
|---|
| Interest and dividend income | -0 | -0 | -0 | -0 | -0 | -0 | -0 |
|---|
| Interest expenses | 1 | 2 | 3 | 8 | 22 | 46 | 37 |
|---|
| Foreign exchange losses (gains) | - | - | - | 2 | -7 | -15 | -23 |
|---|
| Decrease (increase) in trade reeivables and contract assets | - | - | - | - | - | -18 | -356 |
|---|
| Increase (decrease) in trade payables | 18 | 23 | 18 | 50 | 79 | 26 | 45 |
|---|
| Decrease (increase) in prepaid expenses | - | - | - | 6 | -45 | 28 | -36 |
|---|
| Increase (decrease) in accounts payable - other | 4 | 14 | -1 | 25 | -248 | -19 | -13 |
|---|
| Increase (decrease) in accrued expenses | 7 | 2 | 16 | 2 | -16 | 31 | 29 |
|---|
| Increase (decrease) in contract liability | - | - | - | - | - | 377 | 374 |
|---|
| Increase (decrease) in unearned revenue | 2 | 2 | 0 | 1 | -1 | 2 | 1 |
|---|
| Increase (decrease) in deposits received | 1 | 3 | 10 | 6 | -2 | 4 | 34 |
|---|
| Increase (decrease) in accrued consumption taxes | 13 | 6 | 19 | 36 | -54 | 165 | -41 |
|---|
| Other, net | - | - | - | 12 | -8 | 16 | -65 |
|---|
| Subtotal | -39 | 51 | 142 | 402 | 316 | 1,622 | 1,310 |
|---|
| Interest and dividends received | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Interest paid | -1 | -2 | -3 | -8 | -25 | -45 | -37 |
|---|
| Subsidies received | - | - | - | - | 3 | 5 | 99 |
|---|
| Proceeds from insurance income | - | - | - | - | - | - | 31 |
|---|
| Income taxes paid | - | - | - | -0 | -62 | -64 | -470 |
|---|
| Net cash provided by (used in) operating activities | -40 | 47 | 140 | 393 | 231 | 1,519 | 933 |
|---|
| Purchase of property, plant and equipment | -7 | -23 | -11 | -28 | -26 | -43 | -59 |
|---|
| Proceeds from sale of property, plant and equipment | - | - | - | 0 | 0 | - | 2 |
|---|
| Purchase of intangible assets | - | - | - | - | -53 | -195 | -217 |
|---|
| Payments of leasehold and guarantee deposits | - | -25 | -23 | -1 | -5 | -4 | -14 |
|---|
| Proceeds from refund of leasehold and guarantee deposits | 0 | - | - | - | 3 | 6 | 2 |
|---|
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | -11,043 | -198 | - |
|---|
| Net cash provided by (used in) investing activities | -6 | -47 | -34 | -61 | -11,123 | -434 | -286 |
|---|
| Repayments of long-term borrowings | -6 | -17 | -17 | -11 | -75 | -490 | -325 |
|---|
| Proceeds from issuance of shares | - | - | - | 717 | 8,916 | 21 | 35 |
|---|
| Net cash provided by (used in) financing activities | 194 | -17 | -22 | 704 | 12,645 | -469 | -290 |
|---|
| Effect of exchange rate change on cash and cash equivalents | 0 | 0 | -0 | -2 | 14 | 136 | 75 |
|---|
| Net increase (decrease) in cash and cash equivalents | 149 | -17 | 83 | 1,034 | 1,766 | 752 | 432 |
|---|