| Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Net sales | 7,447 | 8,385 | 10,697 | 12,209 | 12,826 | 13,122 |
|---|
| Cost of sales | 6,717 | 7,855 | 9,858 | 11,638 | 12,269 | 13,181 |
|---|
| Gross profit (loss) | 729 | 531 | 839 | 571 | 556 | -60 |
|---|
| Selling, general and administrative expenses | 348 | 446 | 601 | 767 | 844 | 1,134 |
|---|
| Operating profit (loss) | 381 | 85 | 238 | -196 | -288 | -1,193 |
|---|
| Interest income | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Income insurance | 1 | 10 | - | 5 | 0 | 6 |
|---|
| Dividend income | - | - | - | 2 | 3 | - |
|---|
| Gain on sale of goods | 4 | 5 | 4 | 5 | 6 | 7 |
|---|
| Income insurance | 1 | 10 | - | 5 | 0 | 6 |
|---|
| Surrender value of insurance policies | - | - | - | - | - | 11 |
|---|
| Gain on sale of goods | 4 | 5 | 4 | 5 | 6 | 7 |
|---|
| Other | 1 | 1 | 2 | 1 | 1 | 5 |
|---|
| Return of commission fee | - | - | - | - | 2 | - |
|---|
| Non-operating income | 11 | 21 | 23 | 13 | 12 | 30 |
|---|
| Surrender value of insurance policies | - | - | - | - | - | 11 |
|---|
| Other | 1 | 1 | 2 | 1 | 1 | 5 |
|---|
| Non-operating income | 11 | 21 | 23 | 13 | 12 | 30 |
|---|
| Interest expenses | 2 | 3 | 3 | 4 | 4 | 11 |
|---|
| Interest expenses on bonds | - | - | - | - | - | 0 |
|---|
| Share issuance costs | - | - | 7 | 1 | - | 1 |
|---|
| Loss on cancellation of leases | - | - | - | - | - | 2 |
|---|
| Amortization of long-term prepaid expenses | - | - | - | - | - | 1 |
|---|
| Other | 0 | 0 | 0 | 0 | 0 | 1 |
|---|
| Other | 0 | 0 | 0 | 0 | 0 | 1 |
|---|
| Non-operating expenses | 2 | 3 | 20 | 7 | 5 | 15 |
|---|
| Non-operating expenses | 2 | 3 | 20 | 7 | 5 | 15 |
|---|
| Ordinary profit (loss) | 390 | 103 | 241 | -190 | -281 | -1,179 |
|---|
| Gain on sale of investment securities | - | - | - | 2 | 5 | 120 |
|---|
| Gain on sale of non-current assets | - | - | 0 | - | 0 | - |
|---|
| Extraordinary income | - | - | 0 | 2 | 5 | 120 |
|---|
| Gain on sale of investment securities | - | - | - | 2 | 5 | 120 |
|---|
| Extraordinary income | - | - | 0 | 2 | 5 | 120 |
|---|
| Loss on sale of non-current assets | - | - | - | - | 0 | 3 |
|---|
| Compensation for damage | - | - | - | - | - | 36 |
|---|
| Loss on retirement of non-current assets | 0 | - | 0 | 1 | 2 | - |
|---|
| Impairment losses | - | - | - | 102 | 222 | 961 |
|---|
| Loss on valuation of investment securities | 4 | - | 1 | - | - | 1 |
|---|
| Provision for loss on office closing | - | - | - | - | - | 362 |
|---|
| Compensation for damage | - | - | - | - | - | 36 |
|---|
| Other | - | - | - | - | 13 | 26 |
|---|
| Impairment losses | - | - | - | 102 | 222 | 961 |
|---|
| Extraordinary losses | 5 | - | 2 | 103 | 257 | 1,388 |
|---|
| Provision for transfer loss | - | - | - | - | 20 | - |
|---|
| Provision for loss on office closings | - | - | - | - | - | 362 |
|---|
| Provision of allowance for doubtful accounts | - | - | - | - | - | 382 |
|---|
| Other | - | - | - | - | 13 | 26 |
|---|
| Extraordinary losses | 5 | - | 2 | 103 | 257 | 1,388 |
|---|
| Profit (loss) before income taxes | 385 | 103 | 240 | -291 | -533 | -2,447 |
|---|
| Income taxes - current | 125 | 25 | 91 | 23 | -14 | 17 |
|---|
| Income taxes - deferred | -9 | 1 | -3 | 28 | 47 | 2 |
|---|
| Income taxes | 115 | 26 | 88 | 51 | 33 | 19 |
|---|
| Profit (loss) | 270 | 77 | 152 | -342 | -566 | -2,466 |
|---|
| Profit (loss) attributable to owners of parent | - | - | - | - | - | -2,466 |
|---|