| Apr 30,
2018 | Apr 30,
2019 | Apr 30,
2020 | Apr 30,
2021 | Apr 30,
2022 | Apr 30,
2023 | Apr 30,
2024 |
|---|
| Profit (loss) before income taxes | 109 | 196 | 364 | 782 | 1,210 | 2,169 | 3,630 |
|---|
| Depreciation | 5 | 5 | 8 | 13 | 28 | 34 | 48 |
|---|
| Amortization of goodwill | - | - | - | - | 125 | 167 | 395 |
|---|
| Customer-related asset amortization expense | - | - | - | - | - | - | 65 |
|---|
| Share-based payment expenses | - | - | - | - | - | 1 | 14 |
|---|
| Increase (decrease) in allowance for doubtful accounts | 1 | -1 | 4 | 8 | 41 | -45 | 766 |
|---|
| Increase (decrease) in provision for bonuses | - | - | - | - | -6 | - | -8 |
|---|
| Interest and dividend income | - | - | - | - | -0 | -7 | -23 |
|---|
| Interest expenses | 2 | 3 | 3 | 1 | 4 | 12 | 28 |
|---|
| Share issuance costs | - | - | 8 | - | - | 50 | 5 |
|---|
| Loss (gain) on sale of investment securities | - | - | - | - | - | -244 | - |
|---|
| Loss (gain) on valuation of investment securities | - | - | - | - | - | 186 | 37 |
|---|
| Decrease (increase) in trade receivables | -187 | -273 | -134 | -325 | -654 | -497 | -318 |
|---|
| Increase (decrease) in trade payables | 133 | 245 | 14 | 427 | 411 | 454 | 548 |
|---|
| Other, net | 10 | 9 | 9 | 6 | 2 | 193 | -65 |
|---|
| Subtotal | 165 | 197 | 304 | 915 | 1,186 | 2,470 | 5,124 |
|---|
| Interest and dividends received | - | - | - | 0 | 0 | 8 | 23 |
|---|
| Interest paid | -2 | -3 | -3 | -1 | -4 | -12 | -28 |
|---|
| Income taxes refund | - | - | - | - | - | - | 226 |
|---|
| Income taxes paid | -49 | -44 | -60 | -140 | -437 | -984 | -626 |
|---|
| Net cash provided by (used in) operating activities | 114 | 150 | 241 | 774 | 745 | 1,482 | 4,720 |
|---|
| Purchase of property, plant and equipment | -15 | -10 | -2 | -0 | -50 | -25 | -11 |
|---|
| Purchase of investment securities | - | - | - | -124 | -659 | -413 | -912 |
|---|
| Proceeds from sale of investment securities | - | - | - | - | - | 2,915 | - |
|---|
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | -846 | -3,248 | -117 |
|---|
| Payments of leasehold and guarantee deposits | - | - | - | - | -28 | - | -1 |
|---|
| Proceeds from refund of leasehold and guarantee deposits | - | - | - | - | - | 2 | 83 |
|---|
| Loan advances | - | - | - | - | - | - | -850 |
|---|
| Proceeds from collection of loans receivable | - | - | - | - | - | - | 102 |
|---|
| Proceeds from distributions from investment partnerships | - | - | - | - | - | - | 2 |
|---|
| Net cash provided by (used in) investing activities | -19 | -28 | -21 | -169 | -1,605 | -771 | -1,704 |
|---|
| Net increase (decrease) in short-term borrowings | 15 | -15 | - | - | 300 | 1,382 | -593 |
|---|
| Proceeds from long-term borrowings | 360 | 150 | - | 50 | 800 | 1,870 | - |
|---|
| Repayments of long-term borrowings | -47 | -130 | -179 | -115 | -156 | -221 | -452 |
|---|
| Proceeds from issuance of shares | - | - | 763 | 9 | 11 | 3,823 | 585 |
|---|
| Proceeds from sale of shares of subsidiaries not resulting in change in scope of consolidation | - | - | - | - | - | - | 4 |
|---|
| Purchase of treasury shares | - | - | - | -0 | - | - | -693 |
|---|
| Dividends paid | - | - | - | - | - | - | -201 |
|---|
| Net cash provided by (used in) financing activities | 328 | 5 | 584 | -51 | 1,035 | 6,854 | -1,350 |
|---|
| Net increase (decrease) in cash and cash equivalents | 423 | 127 | 804 | 553 | 174 | 7,565 | 1,664 |
|---|