| Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | -2,611 | -4,044 | -11,379 | -2,348 |
|---|
| Depreciation | 60 | 61 | 72 | 83 |
|---|
| Insurance claim income | - | - | - | -3,794 |
|---|
| Subsidy income | -11 | -6 | -1 | - |
|---|
| Compensation for damages | - | - | -18 | - |
|---|
| Interest expenses | 2 | 25 | 196 | 368 |
|---|
| Foreign exchange losses (gains) | -5 | -36 | -45 | -630 |
|---|
| Listing expenses | - | - | - | 471 |
|---|
| Financing expenses | - | - | - | 321 |
|---|
| Share issuance costs | 12 | 19 | - | 52 |
|---|
| Loss on retirement of treasury subscription rights to shares | - | 5 | - | 43 |
|---|
| Commission expenses | - | 10 | 250 | - |
|---|
| Decrease (increase) in trade receivables | 18 | 18 | -6 | 17 |
|---|
| Decrease (increase) in advance payments to suppliers | -144 | -1,761 | 3,632 | -697 |
|---|
| (Increase) decrease in long-term advance payment | -426 | -3 | -919 | -3,114 |
|---|
| Increase (decrease) in contract liabilities | - | 509 | 1,142 | 782 |
|---|
| Other, net | 462 | 336 | -47 | -8 |
|---|
| Subtotal | -2,627 | -5,376 | -7,122 | -8,453 |
|---|
| Proceeds from insurance income | - | - | - | 3,794 |
|---|
| Interest and dividends received | 1 | 0 | 0 | 19 |
|---|
| Interest paid | -2 | -25 | -196 | -370 |
|---|
| Income taxes paid | -4 | -4 | -4 | -13 |
|---|
| Net cash provided by (used in) operating activities | -2,621 | -5,406 | -7,322 | -5,025 |
|---|
| Purchase of property, plant and equipment | -97 | -45 | -55 | -2,023 |
|---|
| Purchase of intangible assets | -9 | -46 | -30 | -36 |
|---|
| Other, net | 2 | 1 | -5 | -3 |
|---|
| Net cash provided by (used in) investing activities | -213 | -90 | -90 | -2,063 |
|---|
| Proceeds from short-term borrowings | - | 1,600 | 1,000 | 5,500 |
|---|
| Repayments of short-term borrowings | - | -167 | -1,100 | -1,083 |
|---|
| Proceeds from long-term borrowings | - | 500 | 4,750 | 2,000 |
|---|
| Repayments of long-term borrowings | - | - | -284 | -677 |
|---|
| Proceeds from issuance of shares | 3,522 | 5,547 | - | 14,823 |
|---|
| Payments of listing expenses | - | - | - | -471 |
|---|
| Payments of finance expenses | - | - | - | -6 |
|---|
| Purchase of treasury shares | - | - | - | -0 |
|---|
| Payments for purchase of treasury subscription right to share | - | -5 | - | -43 |
|---|
| Proceeds from issuance of shares resulting from exercise of share acquisition rights | - | 1 | 0 | 320 |
|---|
| Other, net | -2 | -12 | -2 | 5 |
|---|
| Net cash provided by (used in) financing activities | 3,521 | 7,464 | 4,364 | 20,367 |
|---|
| Effect of exchange rate change on cash and cash equivalents | -5 | -24 | 98 | 172 |
|---|
| Net increase (decrease) in cash and cash equivalents | 682 | 1,944 | -2,951 | 13,451 |
|---|