| Mar 31,
2018 | Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | 68 | 189 | 304 | 540 | 713 | 841 | 695 |
|---|
| Depreciation | 56 | 67 | 75 | 99 | 122 | 137 | 421 |
|---|
| Impairment losses | - | - | - | - | - | - | 42 |
|---|
| Amortization of goodwill | 16 | 16 | 16 | 16 | 16 | 16 | 42 |
|---|
| Interest and dividend income | - | - | - | -0 | -0 | -0 | -1 |
|---|
| Subsidy income | - | - | - | - | - | - | -76 |
|---|
| Loss on retirement of non-current assets | - | - | - | - | - | - | 2 |
|---|
| Decrease (increase) in trade receivables | -139 | -193 | 265 | -68 | 33 | -72 | -108 |
|---|
| Increase (decrease) in trade payables | 140 | 222 | 16 | 136 | 60 | 171 | -8 |
|---|
| Increase (decrease) in provision for bonuses | - | - | 40 | 7 | 21 | -2 | 19 |
|---|
| Increase (decrease) in provision for bonuses for directors (and other officers) | - | - | - | 17 | 9 | 7 | -6 |
|---|
| Increase (decrease) in provision for retirement benefits for directors (and other officers) | -116 | 54 | 20 | 23 | 18 | -165 | - |
|---|
| Increase (decrease) in retirement benefit liability | - | - | 13 | 17 | 7 | 17 | -42 |
|---|
| Decrease (increase) in advance payments to suppliers | -227 | 124 | 18 | 69 | 13 | 0 | 0 |
|---|
| Increase (decrease) in accounts payable - other | 195 | 211 | 299 | 723 | 492 | 312 | 724 |
|---|
| Increase (decrease) in long-term accounts payable - other | - | - | - | - | - | 260 | -2 |
|---|
| Other, net | 36 | 22 | 12 | -66 | -121 | -100 | -57 |
|---|
| Subtotal | 312 | 553 | 990 | 1,426 | 1,365 | 1,423 | 1,644 |
|---|
| Interest and dividends received | - | - | - | 0 | 0 | 0 | 1 |
|---|
| Subsidies received | - | - | - | - | - | - | 76 |
|---|
| Income taxes paid | -16 | -23 | -63 | -167 | -247 | -263 | -345 |
|---|
| Net cash provided by (used in) operating activities | 295 | 530 | 927 | 1,259 | 1,122 | 1,160 | 1,375 |
|---|
| Purchase of property, plant and equipment | -0 | -20 | -5 | -23 | -2 | -1 | -125 |
|---|
| Purchase of intangible assets | -160 | -70 | -116 | -182 | -226 | -261 | -613 |
|---|
| Payments of leasehold and guarantee deposits | - | - | -27 | -8 | - | -62 | -63 |
|---|
| Proceeds from purchase of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | - | - | 1,497 |
|---|
| Proceeds from refund of leasehold and guarantee deposits | - | - | - | - | - | - | 0 |
|---|
| Other, net | 3 | 2 | - | - | - | - | - |
|---|
| Net cash provided by (used in) investing activities | -157 | -87 | -232 | -213 | -228 | -324 | 696 |
|---|
| Proceeds from issuance of shares | 321 | - | 587 | 80 | 79 | 13 | 40 |
|---|
| Purchase of treasury shares | - | - | - | - | -219 | -0 | -105 |
|---|
| Net cash provided by (used in) financing activities | 321 | -15 | 587 | 80 | -140 | 12 | -66 |
|---|
| Net increase (decrease) in cash and cash equivalents | 460 | 429 | 1,282 | 1,126 | 754 | 849 | 2,006 |
|---|