| Mar 31,
2013 | Mar 31,
2014 | Mar 31,
2015 | Mar 31,
2016 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | -51 | -13 | -699 | 1 | -75 | -126 | -260 | -86 |
|---|
| Depreciation | 56 | 47 | 46 | 1 | 9 | 28 | 31 | 20 |
|---|
| Amortization of goodwill | - | - | - | - | - | 7 | 15 | 6 |
|---|
| Interest and dividend income | -5 | -6 | -6 | -5 | -9 | -8 | -8 | -6 |
|---|
| Interest expenses | 17 | 17 | 16 | 16 | 11 | 10 | 11 | 11 |
|---|
| Impairment losses | - | - | 699 | - | 28 | 7 | 126 | 271 |
|---|
| Gain on reversal of share acquisition rights | - | - | - | - | - | -2 | - | -2 |
|---|
| Foreign exchange losses (gains) | - | - | - | - | -4 | -5 | -2 | -7 |
|---|
| Loss (gain) on sale of investment securities | - | -15 | - | - | -54 | -9 | -12 | -226 |
|---|
| Subsidy income | - | - | - | - | - | -1 | -63 | -9 |
|---|
| Loss on tax purpose reduction entry of non-current assets | - | - | - | - | - | - | 53 | - |
|---|
| Decrease (increase) in trade receivables | 33 | -13 | -22 | -6 | 6 | -39 | -22 | -51 |
|---|
| Increase (decrease) in allowance for doubtful accounts | - | - | - | - | - | - | - | 2 |
|---|
| Decrease (increase) in inventories | 0 | 4 | 1 | -13 | -5 | -52 | -15 | -24 |
|---|
| Increase (decrease) in trade payables | -12 | -4 | 13 | 1 | 14 | -11 | -10 | 25 |
|---|
| Increase (decrease) in accounts payable - other | - | - | - | - | 3 | 9 | -0 | 7 |
|---|
| Decrease (increase) in advance payments to suppliers | - | - | - | - | -16 | 19 | -9 | -29 |
|---|
| Decrease (increase) in accounts receivable - other | -4 | 4 | -4 | 4 | -1 | 16 | -1 | 1 |
|---|
| Decrease (increase) in consumption taxes refund receivable | - | - | - | - | - | - | 5 | 1 |
|---|
| Increase (decrease) in accrued consumption taxes | - | 1 | 11 | -11 | -3 | -4 | 14 | -4 |
|---|
| Increase (decrease) in income taxes payable - factor based tax | - | - | - | - | - | - | 0 | 6 |
|---|
| Other, net | -7 | 8 | 1 | 2 | -2 | 5 | 2 | -1 |
|---|
| Subtotal | 27 | 30 | 49 | -8 | -98 | -154 | -146 | -96 |
|---|
| Interest and dividends received | 5 | 6 | 6 | 5 | 9 | 8 | 8 | 5 |
|---|
| Interest paid | -17 | -18 | -16 | -16 | -11 | -10 | -13 | -11 |
|---|
| Income taxes paid | -1 | -1 | -2 | -0 | -2 | -5 | -6 | -6 |
|---|
| Income taxes refund | - | - | - | - | - | - | 1 | 2 |
|---|
| Subsidies received | - | - | - | - | - | 1 | 63 | 9 |
|---|
| Net cash provided by (used in) operating activities | 15 | 17 | 37 | -19 | -102 | -161 | -92 | -97 |
|---|
| Proceeds from sale of investment securities | - | 33 | 1 | - | 120 | 17 | 24 | 228 |
|---|
| Purchase of property, plant and equipment | -33 | -4 | -18 | -24 | -30 | -99 | -231 | -50 |
|---|
| Purchase of intangible assets | - | - | - | - | - | - | - | -0 |
|---|
| Payments of leasehold and guarantee deposits | - | -0 | - | - | -1 | -20 | -0 | -0 |
|---|
| Other, net | - | - | - | - | - | - | 0 | - |
|---|
| Net cash provided by (used in) investing activities | -33 | 30 | -17 | -23 | 135 | -351 | -207 | 177 |
|---|
| Net increase (decrease) in short-term borrowings | - | - | - | - | -50 | -20 | 108 | -108 |
|---|
| Proceeds from long-term borrowings | - | - | - | - | - | - | 30 | - |
|---|
| Repayments of long-term borrowings | -29 | -12 | - | - | -4 | -16 | -20 | -100 |
|---|
| Repayments of lease liabilities | -1 | -2 | -1 | -2 | -1 | -1 | -1 | -1 |
|---|
| Proceeds from issuance of shares | - | - | - | - | 431 | 195 | 156 | - |
|---|
| Proceeds from issuance of share acquisition rights | - | - | - | - | 2 | 3 | 1 | - |
|---|
| Proceeds from issuance of shares resulting from exercise of share acquisition rights | - | - | - | - | - | 175 | - | 50 |
|---|
| Purchase of treasury shares | -0 | -0 | -0 | -0 | -0 | -0 | -0 | - |
|---|
| Net cash provided by (used in) financing activities | -37 | -26 | -13 | -14 | 377 | 336 | 274 | -160 |
|---|
| Effect of exchange rate change on cash and cash equivalents | - | - | - | - | 4 | 5 | 2 | 9 |
|---|
| Net increase (decrease) in cash and cash equivalents | -55 | 20 | 6 | -56 | 415 | -172 | -22 | -70 |
|---|