| Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 |
|---|
| Profit (loss) before income taxes | 5,216 | 4,703 | -3,523 | -2,008 | 718 |
|---|
| Depreciation | 7,078 | 6,937 | 6,956 | 6,773 | 6,431 |
|---|
| Increase (decrease) in provision for retirement benefits | 42 | 39 | 40 | 47 | 49 |
|---|
| Interest income | -0 | -0 | -0 | -0 | -0 |
|---|
| Interest income on securities | -13 | -11 | -4 | -5 | -4 |
|---|
| Interest expenses | 1,018 | 895 | 754 | 584 | 409 |
|---|
| Interest expenses on bonds | - | - | 11 | 33 | 45 |
|---|
| Bond issuance costs | - | - | 50 | 41 | - |
|---|
| Retirement of fixed assets | 99 | 117 | 23 | 38 | 39 |
|---|
| Loss on tax purpose reduction entry of non-current assets | 526 | 189 | 80 | 613 | 559 |
|---|
| Decrease (increase) in railway fares receivables | -83 | 602 | 116 | -105 | -264 |
|---|
| Decrease (increase) in accounts due-other | -35 | -0 | 52 | 18 | -1 |
|---|
| Decrease (increase) in consumption taxes refund receivable | - | - | -571 | 571 | - |
|---|
| Increase (decrease) in inter-line fares received | 5 | 4 | -36 | -5 | -2 |
|---|
| cIncrease (decrease) in deposits received | 6 | -255 | 23 | 41 | 95 |
|---|
| Increase (decrease) in prepaid fares received | 49 | 5 | -418 | -48 | 5 |
|---|
| Decrease (increase) in inventories | 12 | -23 | -25 | -30 | 9 |
|---|
| Increase (decrease) in accrued consumption taxes | -16 | 9 | -204 | 350 | 6 |
|---|
| Subsidy income | -448 | -190 | -78 | -558 | -550 |
|---|
| Reversal of special suspense account for reduction entry | -104 | - | -3 | -72 | -19 |
|---|
| Other, net | -104 | 126 | -321 | 108 | 199 |
|---|
| Subtotal | 13,207 | 13,146 | 2,816 | 6,385 | 7,725 |
|---|
| Interest received | 19 | 16 | 12 | 7 | 4 |
|---|
| Interest paid | -1,020 | -896 | -755 | -611 | -456 |
|---|
| Income taxes refund (paid) | - | - | -1,357 | 726 | -4 |
|---|
| Net cash provided by (used in) operating activities | 10,653 | 10,527 | 716 | 6,506 | 7,270 |
|---|
| Payments into time deposits | -3,000 | -4,500 | -1,500 | - | -1,000 |
|---|
| Purchase of securities | -12,500 | -6,500 | -1,500 | -17,000 | -13,000 |
|---|
| Proceeds from redemption of securities | 13,500 | 12,400 | 4,000 | 9,000 | 16,000 |
|---|
| Purchase of property, plant and equipment | -4,413 | -1,925 | -3,690 | -1,352 | -1,153 |
|---|
| Purchase of intangible assets | -361 | -313 | -187 | -801 | -392 |
|---|
| Purchase of investment securities | - | - | - | - | -400 |
|---|
| Proceeds from redemption of investment securities | - | 100 | 500 | 1,000 | 800 |
|---|
| Subsidies received | - | 320 | 160 | 160 | 589 |
|---|
| Net cash provided by (used in) investing activities | -3,517 | 2,582 | 1,129 | -8,993 | 1,444 |
|---|
| Repayments of long-term borrowings | -730 | -724 | -723 | -723 | -723 |
|---|
| Proceeds from issuance of bonds | - | - | 9,950 | 7,959 | - |
|---|
| Repayments of accounts payable to Japan railway construction, transport and technology agency | -9,469 | -9,494 | -8,458 | -8,591 | -8,657 |
|---|
| Repayments of lease liabilities | -172 | -126 | -115 | -113 | -111 |
|---|
| Net cash provided by (used in) financing activities | -10,371 | -10,344 | 654 | -1,469 | -9,491 |
|---|
| Net increase (decrease) in cash and cash equivalents | -3,235 | 2,765 | 2,499 | -3,955 | -777 |
|---|