| Mar 31,
2018 | Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Net sales | 20,002 | 22,900 | 24,801 | 25,278 | 29,971 | 33,231 | 35,696 |
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| Cost of sales | 17,094 | 19,786 | 21,104 | 21,657 | 26,079 | 28,548 | 30,690 |
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| Gross profit (loss) | 2,908 | 3,114 | 3,697 | 3,621 | 3,892 | 4,682 | 5,005 |
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| Depreciation | - | - | - | - | - | 57 | 60 |
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| Payroll and allowances | - | - | 1,213 | 1,470 | 1,622 | 1,668 | 1,876 |
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| Payroll and allowances | - | - | 1,213 | 1,470 | 1,622 | 1,668 | 1,876 |
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| Provision for bonuses | 35 | 37 | 32 | 24 | 38 | 39 | 183 |
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| Provision of allowance for doubtful accounts | 5 | 6 | 10 | 15 | - | 2 | 3 |
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| Retirement benefit expenses | 11 | 12 | 17 | 11 | 19 | 15 | 7 |
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| Commission expenses | - | 198 | 272 | 470 | 468 | 448 | 785 |
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| Commission expenses | - | 198 | 272 | 470 | 468 | 448 | 785 |
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| Share-based payment expenses | - | - | - | - | - | 14 | 7 |
|---|
| Share-based payment expenses | - | - | - | - | - | 14 | 7 |
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| Other | 1,058 | 1,189 | 1,024 | 1,190 | 1,358 | 1,502 | 1,814 |
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| Other | 1,058 | 1,189 | 1,024 | 1,190 | 1,358 | 1,502 | 1,814 |
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| Selling, general and administrative expenses | 1,946 | 2,262 | 2,567 | 3,181 | 3,507 | 3,690 | 4,678 |
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| Selling, general and administrative expenses | 1,946 | 2,262 | 2,567 | 3,181 | 3,507 | 3,690 | 4,678 |
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| Operating profit (loss) | 962 | 852 | 1,130 | 440 | 384 | 991 | 327 |
|---|
| Interest income | 0 | 0 | 0 | 0 | - | - | - |
|---|
| Interest and dividend income | - | - | - | - | - | 195 | 192 |
|---|
| Share of profit of entities accounted for using equity method | 3 | - | - | - | - | - | - |
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| Subsidy income | 25 | 55 | 52 | 804 | 265 | 139 | 87 |
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| Subsidy income | 25 | 55 | 52 | 804 | 265 | 139 | 87 |
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| Other | 14 | 26 | 14 | 15 | 8 | 11 | 1 |
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| Compensation income | - | 22 | - | - | - | - | 10 |
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| Non-operating income | 42 | 104 | 67 | 820 | 274 | 150 | 110 |
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| Miscellaneous income | - | - | - | - | - | 11 | 12 |
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| Other | 14 | 26 | 14 | 15 | 8 | 11 | 1 |
|---|
| Non-operating income | 42 | 104 | 67 | 820 | 274 | 150 | 110 |
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| Interest expenses | 5 | 4 | 3 | 4 | 2 | 2 | 3 |
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| Share of loss of entities accounted for using equity method | - | 1 | 4 | 1 | 4 | 5 | - |
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| Loss on cancellation of security deposit | 1 | 3 | 3 | 1 | 1 | - | 1 |
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| Foreign exchange losses | - | 2 | 4 | - | - | - | 24 |
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| Miscellaneous losses | - | - | - | - | - | - | 4 |
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| Other | 3 | 4 | 8 | 4 | 3 | 2 | 1 |
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| Non-operating expenses | 10 | 16 | 21 | 12 | 10 | 10 | 34 |
|---|
| Non-operating expenses | 10 | 16 | 21 | 12 | 10 | 10 | 34 |
|---|
| Ordinary profit (loss) | 994 | 940 | 1,176 | 1,248 | 648 | 1,132 | 404 |
|---|
| Gain on sale of non-current assets | - | - | - | - | - | 13 | - |
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| Gain on bargain purchase | - | - | - | - | - | - | 770 |
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| Insurance claim income | - | - | - | - | - | 10 | - |
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| Insurance claim income | - | - | - | - | - | 10 | - |
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| Extraordinary income | - | - | - | - | - | 23 | 770 |
|---|
| Extraordinary income | - | - | - | - | - | 23 | 770 |
|---|
| Impairment losses | 7 | - | 10 | 9 | - | - | 164 |
|---|
| Loss on sale of non-current assets | - | - | - | - | - | - | - |
|---|
| Loss on valuation of investment securities | - | - | - | - | - | 38 | 200 |
|---|
| Loss on valuation of investment securities | - | - | - | - | - | 38 | 200 |
|---|
| Loss on valuation of shares of subsidiaries and associates | - | - | - | - | - | - | 356 |
|---|
| Compensation for damage | - | - | - | - | - | 11 | - |
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| Loss on retirement of non-current assets | - | - | - | - | 5 | 5 | 1 |
|---|
| Settlement payments | - | - | - | - | 3 | - | - |
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| Extraordinary losses | 7 | 3 | 10 | 9 | 8 | 55 | 366 |
|---|
| Impairment losses | 7 | - | 10 | 9 | - | - | 164 |
|---|
| Loss on sale of non-current assets | - | - | - | - | - | - | - |
|---|
| Loss on valuation of investment securities | - | - | - | - | - | 38 | 200 |
|---|
| Loss on valuation of investment securities | - | - | - | - | - | 38 | 200 |
|---|
| Loss on valuation of shares of subsidiaries and associates | - | - | - | - | - | - | 356 |
|---|
| Compensation for damage | - | - | - | - | - | 11 | - |
|---|
| Loss on retirement of non-current assets | - | - | - | - | 5 | 5 | 1 |
|---|
| Settlement payments | - | - | - | - | 3 | - | - |
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| Extraordinary losses | 7 | 3 | 10 | 9 | 8 | 55 | 366 |
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| Profit (loss) before income taxes | 987 | 937 | 1,166 | 1,239 | 639 | 1,100 | 808 |
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| Profit (loss) before income taxes | 987 | 937 | 1,166 | 1,239 | 639 | 1,100 | 808 |
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| Income taxes - current | 326 | 275 | 410 | 482 | 207 | 441 | 317 |
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| Income taxes - current | 326 | 275 | 410 | 482 | 207 | 441 | 317 |
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| Income taxes - deferred | -86 | 12 | -9 | -22 | 140 | 2 | -175 |
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| Income taxes - deferred | -86 | 12 | -9 | -22 | 140 | 2 | -175 |
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| Income taxes | 241 | 287 | 401 | 459 | 347 | 443 | 141 |
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| Income taxes | 241 | 287 | 401 | 459 | 347 | 443 | 141 |
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| Profit (loss) | 747 | 650 | 765 | 781 | 292 | 656 | 666 |
|---|
| Profit (loss) | 747 | 650 | 765 | 781 | 292 | 656 | 666 |
|---|
| Profit (loss) attributable to owners of parent | 747 | 650 | 765 | 781 | 292 | 656 | 666 |
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