| Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 |
|---|
| Profit (loss) before income taxes | 5,324 | 170 | -3,565 | -7,357 |
|---|
| Depreciation | 21,625 | 21,941 | 21,917 | 22,751 |
|---|
| Impairment losses | 553 | 581 | 465 | 939 |
|---|
| Amortization of long-term prepaid expenses | 323 | 358 | 320 | 200 |
|---|
| Increase (decrease) in retirement benefit liability | -2,973 | -3,237 | 960 | -1,588 |
|---|
| Interest and dividend income | -95 | -104 | -100 | -116 |
|---|
| Interest expenses | 1,677 | 1,449 | 1,269 | 1,248 |
|---|
| Share of loss (profit) of entities accounted for using equity method | -206 | 104 | 169 | -278 |
|---|
| Contribution received for construction | -233 | -4,574 | -2,789 | -1,043 |
|---|
| Loss (gain) on sale of non-current assets | -13 | -16 | -910 | -69 |
|---|
| Loss on retirement of non-current assets | 1,797 | 2,133 | 1,984 | 2,414 |
|---|
| Loss on tax purpose reduction entry of non-current assets | 24 | 2,931 | 2,367 | 339 |
|---|
| Loss on disaster | 379 | 290 | 186 | 380 |
|---|
| Decrease (increase) in trade receivables | 464 | -965 | -1,267 | -776 |
|---|
| Increase (decrease) in provision for loss on liquidation of subsidiaries and associates | - | - | 84 | -84 |
|---|
| Decrease (increase) in inventories | 195 | -691 | -13 | -104 |
|---|
| Increase (decrease) in trade payables | 1,450 | 1,584 | 1,446 | 2,287 |
|---|
| Increase (decrease) in provision for environmental measures | 701 | -47 | -250 | -735 |
|---|
| Increase (decrease) in guarantee deposits received | -462 | -1,271 | -1,848 | -736 |
|---|
| Increase (decrease) in accrued consumption taxes | 990 | -316 | -220 | 185 |
|---|
| Decrease (increase) in consumption taxes refund receivable | - | -11 | -1,423 | 1,393 |
|---|
| Other, net | 125 | -148 | 578 | 284 |
|---|
| Subtotal | 33,310 | 20,443 | 20,947 | 21,385 |
|---|
| Interest and dividends received | 86 | 96 | 93 | 109 |
|---|
| Interest paid | -1,387 | -1,235 | -1,109 | -1,035 |
|---|
| Income taxes paid | -499 | -3,055 | -549 | -948 |
|---|
| Income taxes refund | 1,119 | 29 | 598 | 1 |
|---|
| Payments associated with disaster loss | -261 | -290 | -186 | -380 |
|---|
| Net cash provided by (used in) operating activities | 32,367 | 15,988 | 19,792 | 19,131 |
|---|
| Purchase of property, plant and equipment and intangible assets | -21,110 | -33,079 | -37,400 | -33,876 |
|---|
| Proceeds from sale of property, plant and equipment and intangible assets | 20 | 38 | 922 | 80 |
|---|
| Proceeds from contribution received for construction | 1,291 | 3,953 | 2,886 | 2,124 |
|---|
| Payments for retirement of non-current assets | -812 | -2,040 | -778 | -992 |
|---|
| Payments for asset retirement obligations | - | -1,119 | -69 | -101 |
|---|
| Other, net | 380 | 378 | 142 | -806 |
|---|
| Net cash provided by (used in) investing activities | -20,047 | -31,595 | -34,297 | -33,573 |
|---|
| Net increase (decrease) in short-term borrowings | -223 | 165 | -470 | -290 |
|---|
| Proceeds from long-term borrowings | 12,222 | 21,884 | 12,639 | 18,631 |
|---|
| Repayments of long-term borrowings | -17,367 | -11,869 | -12,524 | -10,983 |
|---|
| Dividends paid to non-controlling interests | -10 | -11 | -10 | -10 |
|---|
| Proceeds from issuance of bonds | - | - | 20,000 | - |
|---|
| Other, net | -388 | -620 | -643 | -912 |
|---|
| Net cash provided by (used in) financing activities | -5,767 | 9,548 | 18,989 | 6,434 |
|---|
| Effect of exchange rate change on cash and cash equivalents | - | - | - | - |
|---|
| Net increase (decrease) in cash and cash equivalents | 6,552 | -6,058 | 4,485 | -8,007 |
|---|