Annual report
5476.TEDINET S100R5Q2
Period2022-04-01 → 2023-03-31
Filed2023-06-28
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 146
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥44.6bn | 2022-04-01 → 2023-03-31 | Cons. | Net sales |
| Revenue | ¥41.7bn | 2021-04-01 → 2022-03-31 | Cons. | Net sales |
| Revenue | ¥31.5bn | 2020-04-01 → 2021-03-31d | Cons. | Net sales (5-year summary) |
| Revenue | ¥37.3bn | 2019-04-01 → 2020-03-31d | Cons. | Net sales (5-year summary) |
| Revenue | ¥41.3bn | 2018-04-01 → 2019-03-31d | Cons. | Net sales (5-year summary) |
| Operating income | ¥821m | 2022-04-01 → 2023-03-31 | Cons. | Operating income |
| Operating income | ¥530m | 2021-04-01 → 2022-03-31 | Cons. | Operating income |
| Ordinary income | ¥866m | 2022-04-01 → 2023-03-31 | Cons. | Ordinary income |
| Ordinary income | ¥583m | 2021-04-01 → 2022-03-31 | Cons. | Ordinary income |
| Ordinary income | −¥1.8bn | 2020-04-01 → 2021-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥62m | 2019-04-01 → 2020-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥846m | 2018-04-01 → 2019-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Profit before tax | −¥63m | 2022-04-01 → 2023-03-31 | Cons. | Income before income taxes |
| Profit before tax | ¥567m | 2021-04-01 → 2022-03-31 | Cons. | Income before income taxes |
| Net income (owners) | −¥150m | 2022-04-01 → 2023-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥417m | 2021-04-01 → 2022-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | −¥6.4bn | 2020-04-01 → 2021-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | −¥49m | 2019-04-01 → 2020-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥244m | 2018-04-01 → 2019-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income | −¥150m | 2022-04-01 → 2023-03-31 | Cons. | Profit loss |
| Net income | ¥417m | 2021-04-01 → 2022-03-31 | Cons. | Profit loss |
| Total assets | ¥42.0bn | at 2023-03-31 | Cons. | Assets |
| Total assets | ¥39.3bn | at 2022-03-31 | Cons. | Assets |
| Total assets | ¥37.3bn | at 2021-03-31d | Cons. | Total assets (5-year summary) |
| Total assets | ¥47.2bn | at 2020-03-31d | Cons. | Total assets (5-year summary) |
| Total assets | ¥48.0bn | at 2019-03-31d | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥26.9bn | at 2023-03-31 | Cons. | Liabilities |
| Total liabilities | ¥24.1bn | at 2022-03-31 | Cons. | Liabilities |
| Net assets / equity | ¥15.1bn | at 2023-03-31 | Cons. | Net assets |
| Net assets / equity | ¥15.3bn | at 2022-03-31 | Cons. | Net assets |
| Net assets / equity | ¥14.8bn | at 2021-03-31d | Cons. | Net assets |
| Net assets / equity | ¥21.2bn | at 2020-03-31d | Cons. | Net assets (5-year summary) |
| Net assets / equity | ¥20.7bn | at 2019-03-31d | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥124m | at 2023-03-31 | Cons. | Cash and deposits |
| Cash and deposits | ¥155m | at 2022-03-31 | Cons. | Cash and deposits |
| Cash & equivalents | ¥728m | at 2023-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥169m | at 2022-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥932m | at 2021-03-31d | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥266m | at 2020-03-31d | Cons. | Cash and cash equivalents (5-year summary) |
| Cash & equivalents | ¥264m | at 2019-03-31d | Cons. | Cash and cash equivalents (5-year summary) |
| Operating cash flow | −¥985m | 2022-04-01 → 2023-03-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥481m | 2021-04-01 → 2022-03-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥1.0bn | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥1.7bn | 2019-04-01 → 2020-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | −¥285m | 2018-04-01 → 2019-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Investing cash flow | −¥354m | 2022-04-01 → 2023-03-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥567m | 2021-04-01 → 2022-03-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | ¥2.4bn | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥3.0bn | 2019-04-01 → 2020-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥3.3bn | 2018-04-01 → 2019-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Financing cash flow | ¥1.9bn | 2022-04-01 → 2023-03-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥676m | 2021-04-01 → 2022-03-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥2.8bn | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | ¥1.3bn | 2019-04-01 → 2020-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | ¥3.3bn | 2018-04-01 → 2019-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| EPS (basic) | ¥-10.3 | 2022-04-01 → 2023-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥28.5 | 2021-04-01 → 2022-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-439.8 | 2020-04-01 → 2021-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-3.36 | 2019-04-01 → 2020-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥16.67 | 2018-04-01 → 2019-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| Net assets per share | ¥1,032.83 | at 2023-03-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,041.2 | at 2022-03-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,012.82 | at 2021-03-31d | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,446.7 | at 2020-03-31d | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,411.58 | at 2019-03-31d | Cons. | Net assets per share (5-year summary) |
| Equity ratio | 36.0% | at 2023-03-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 38.8% | at 2022-03-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 39.7% | at 2021-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 44.9% | at 2020-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 43.1% | at 2019-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| ROE | -1.0% | 2022-04-01 → 2023-03-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 2.8% | 2021-04-01 → 2022-03-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | -35.8% | 2020-04-01 → 2021-03-31d | Cons. | Rate of return on equity (5-year summary) |
| ROE | -0.2% | 2019-04-01 → 2020-03-31d | Cons. | Rate of return on equity (5-year summary) |
| ROE | 1.2% | 2018-04-01 → 2019-03-31d | Cons. | Rate of return on equity (5-year summary) |
| Employees | 1,202 | at 2023-03-31 | Cons. | Number of employees |
| Employees | 1,246 | at 2022-03-31 | Cons. | Number of employees |
| Employees | 1,295 | at 2021-03-31d | Cons. | Number of employees |
| Employees | 1,284 | at 2020-03-31d | Cons. | Number of employees |
| Employees | 1,276 | at 2019-03-31d | Cons. | Number of employees |
| Revenue | ¥30.0bn | 2022-04-01 → 2023-03-31 | Standalone | Net sales |
| Revenue | ¥27.8bn | 2021-04-01 → 2022-03-31 | Standalone | Net sales |
| Revenue | ¥20.1bn | 2020-04-01 → 2021-03-31d | Standalone | Net sales (5-year summary) |
| Revenue | ¥24.3bn | 2019-04-01 → 2020-03-31d | Standalone | Net sales (5-year summary) |
| Revenue | ¥25.9bn | 2018-04-01 → 2019-03-31d | Standalone | Net sales (5-year summary) |
| Operating income | ¥827m | 2022-04-01 → 2023-03-31 | Standalone | Operating income |
| Operating income | ¥376m | 2021-04-01 → 2022-03-31 | Standalone | Operating income |
| Ordinary income | ¥917m | 2022-04-01 → 2023-03-31 | Standalone | Ordinary income |
| Ordinary income | ¥505m | 2021-04-01 → 2022-03-31 | Standalone | Ordinary income |
| Ordinary income | −¥1.5bn | 2020-04-01 → 2021-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥180m | 2019-04-01 → 2020-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥269m | 2018-04-01 → 2019-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Profit before tax | ¥903m | 2022-04-01 → 2023-03-31 | Standalone | Income before income taxes |
| Profit before tax | ¥170m | 2021-04-01 → 2022-03-31 | Standalone | Income before income taxes |
| Net income | ¥798m | 2022-04-01 → 2023-03-31 | Standalone | Profit loss |
| Net income | ¥66m | 2021-04-01 → 2022-03-31 | Standalone | Profit loss |
| Net income | −¥6.1bn | 2020-04-01 → 2021-03-31d | Standalone | Net income loss (5-year summary) |
| Net income | ¥245m | 2019-04-01 → 2020-03-31d | Standalone | Net income loss (5-year summary) |
| Net income | −¥84m | 2018-04-01 → 2019-03-31d | Standalone | Net income loss (5-year summary) |
| Total assets | ¥33.1bn | at 2023-03-31 | Standalone | Assets |
| Total assets | ¥30.8bn | at 2022-03-31 | Standalone | Assets |
| Total assets | ¥29.0bn | at 2021-03-31d | Standalone | Total assets (5-year summary) |
| Total assets | ¥38.7bn | at 2020-03-31d | Standalone | Total assets (5-year summary) |
| Total assets | ¥38.5bn | at 2019-03-31d | Standalone | Total assets (5-year summary) |
| Total liabilities | ¥18.3bn | at 2023-03-31 | Standalone | Liabilities |
| Total liabilities | ¥16.8bn | at 2022-03-31 | Standalone | Liabilities |
| Net assets / equity | ¥14.8bn | at 2023-03-31 | Standalone | Net assets |
| Net assets / equity | ¥14.0bn | at 2022-03-31 | Standalone | Net assets |
| Net assets / equity | ¥14.0bn | at 2021-03-31d | Standalone | Net assets |
| Net assets / equity | ¥20.0bn | at 2020-03-31d | Standalone | Net assets (5-year summary) |
| Net assets / equity | ¥19.2bn | at 2019-03-31d | Standalone | Net assets (5-year summary) |
| Cash and deposits | ¥78m | at 2023-03-31 | Standalone | Cash and deposits |
| Cash and deposits | ¥89m | at 2022-03-31 | Standalone | Cash and deposits |
| EPS (basic) | ¥54.46 | 2022-04-01 → 2023-03-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥4.55 | 2021-04-01 → 2022-03-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-416.65 | 2020-04-01 → 2021-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥16.76 | 2019-04-01 → 2020-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-5.75 | 2018-04-01 → 2019-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| Dividend per share | ¥5 | 2022-04-01 → 2023-03-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥15 | 2019-04-01 → 2020-03-31d | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥15 | 2018-04-01 → 2019-03-31d | Standalone | Dividend paid per share (5-year summary) |
| Net assets per share | ¥1,010.38 | at 2023-03-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥955.73 | at 2022-03-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥952.03 | at 2021-03-31d | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,362.34 | at 2020-03-31d | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,309.15 | at 2019-03-31d | Standalone | Net assets per share (5-year summary) |
| Equity ratio | 44.7% | at 2023-03-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 45.4% | at 2022-03-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 48.0% | at 2021-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 51.6% | at 2020-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 49.8% | at 2019-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| ROE | 5.5% | 2022-04-01 → 2023-03-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 0.5% | 2021-04-01 → 2022-03-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | -36.0% | 2020-04-01 → 2021-03-31d | Standalone | Rate of return on equity (5-year summary) |
| ROE | 1.3% | 2019-04-01 → 2020-03-31d | Standalone | Rate of return on equity (5-year summary) |
| ROE | -0.4% | 2018-04-01 → 2019-03-31d | Standalone | Rate of return on equity (5-year summary) |
| Shares issued | 14,687,617 | at 2023-03-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 14,687,617 | at 2022-03-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 14,687,617 | at 2021-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 14,687,617 | at 2020-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 14,687,617 | at 2019-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Employees | 509 | at 2023-03-31 | Standalone | Number of employees |
| Employees | 523 | at 2022-03-31 | Standalone | Number of employees |
| Employees | 568 | at 2021-03-31d | Standalone | Number of employees |
| Employees | 571 | at 2020-03-31d | Standalone | Number of employees |
| Employees | 569 | at 2019-03-31d | Standalone | Number of employees |
Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.
Segments · 63
| Segment | Item | Period | Value |
|---|---|---|---|
| Reconciling Itemsreconciling | revenue | 2022-04-01 → 2023-03-31 | −¥71m |
| Reconciling Itemsreconciling | revenue intersegment | 2022-04-01 → 2023-03-31 | −¥71m |
| Castingreportable segment | capex | 2022-04-01 → 2023-03-31 | ¥125m |
| Castingreportable segment | depreciation | 2022-04-01 → 2023-03-31 | ¥430m |
| Castingreportable segment | employees | at 2023-03-31 | 367 pure |
| Castingreportable segment | revenue | 2022-04-01 → 2023-03-31 | ¥10.8bn |
| Castingreportable segment | revenue external | 2022-04-01 → 2023-03-31 | ¥10.8bn |
| Castingreportable segment | segment assets | at 2023-03-31 | ¥8.0bn |
| Castingreportable segment | segment profit | 2022-04-01 → 2023-03-31 | ¥46m |
| Dies And Toolsreportable segment | capex | 2022-04-01 → 2023-03-31 | ¥0 |
| Dies And Toolsreportable segment | depreciation | 2022-04-01 → 2023-03-31 | ¥80m |
| Dies And Toolsreportable segment | employees | at 2023-03-31 | 94 pure |
| Dies And Toolsreportable segment | revenue | 2022-04-01 → 2023-03-31 | ¥1.4bn |
| Dies And Toolsreportable segment | revenue external | 2022-04-01 → 2023-03-31 | ¥1.4bn |
| Dies And Toolsreportable segment | revenue intersegment | 2022-04-01 → 2023-03-31 | ¥5m |
| Dies And Toolsreportable segment | segment assets | at 2023-03-31 | ¥1.8bn |
| Dies And Toolsreportable segment | segment profit | 2022-04-01 → 2023-03-31 | −¥154m |
| Special Steelsreportable segment | capex | 2022-04-01 → 2023-03-31 | ¥424m |
| Special Steelsreportable segment | depreciation | 2022-04-01 → 2023-03-31 | ¥691m |
| Special Steelsreportable segment | employees | at 2023-03-31 | 741 pure |
| Special Steelsreportable segment | revenue | 2022-04-01 → 2023-03-31 | ¥32.4bn |
| Special Steelsreportable segment | revenue external | 2022-04-01 → 2023-03-31 | ¥32.3bn |
| Special Steelsreportable segment | revenue intersegment | 2022-04-01 → 2023-03-31 | ¥66m |
| Special Steelsreportable segment | segment assets | at 2023-03-31 | ¥32.2bn |
| Special Steelsreportable segment | segment profit | 2022-04-01 → 2023-03-31 | ¥929m |
| —segment total | capex | 2022-04-01 → 2023-03-31 | ¥550m |
| —segment total | depreciation | 2022-04-01 → 2023-03-31 | ¥1.2bn |
| —segment total | revenue | 2022-04-01 → 2023-03-31 | ¥44.6bn |
| —segment total | revenue external | 2022-04-01 → 2023-03-31 | ¥44.6bn |
| —segment total | revenue intersegment | 2022-04-01 → 2023-03-31 | ¥71m |
| —segment total | segment assets | at 2023-03-31 | ¥42.0bn |
| —segment total | segment profit | 2022-04-01 → 2023-03-31 | ¥821m |
| Reconciling Itemsreconciling | revenue | 2021-04-01 → 2022-03-31 | −¥98m |
| Reconciling Itemsreconciling | revenue intersegment | 2021-04-01 → 2022-03-31 | −¥98m |
| Castingreportable segment | capex | 2021-04-01 → 2022-03-31 | ¥149m |
| Castingreportable segment | depreciation | 2021-04-01 → 2022-03-31 | ¥482m |
| Castingreportable segment | revenue | 2021-04-01 → 2022-03-31 | ¥9.7bn |
| Castingreportable segment | revenue external | 2021-04-01 → 2022-03-31 | ¥9.7bn |
| Castingreportable segment | revenue intersegment | 2021-04-01 → 2022-03-31 | ¥2m |
| Castingreportable segment | segment assets | at 2022-03-31 | ¥7.7bn |
| Castingreportable segment | segment profit | 2021-04-01 → 2022-03-31 | ¥23m |
| Dies And Toolsreportable segment | capex | 2021-04-01 → 2022-03-31 | ¥3m |
| Dies And Toolsreportable segment | depreciation | 2021-04-01 → 2022-03-31 | ¥89m |
| Dies And Toolsreportable segment | revenue | 2021-04-01 → 2022-03-31 | ¥1.5bn |
| Dies And Toolsreportable segment | revenue external | 2021-04-01 → 2022-03-31 | ¥1.5bn |
| Dies And Toolsreportable segment | revenue intersegment | 2021-04-01 → 2022-03-31 | ¥2m |
| Dies And Toolsreportable segment | segment assets | at 2022-03-31 | ¥2.1bn |
| Dies And Toolsreportable segment | segment profit | 2021-04-01 → 2022-03-31 | −¥6m |
| Special Steelsreportable segment | capex | 2021-04-01 → 2022-03-31 | ¥319m |
| Special Steelsreportable segment | depreciation | 2021-04-01 → 2022-03-31 | ¥714m |
| Special Steelsreportable segment | revenue | 2021-04-01 → 2022-03-31 | ¥30.6bn |
| Special Steelsreportable segment | revenue external | 2021-04-01 → 2022-03-31 | ¥30.5bn |
| Special Steelsreportable segment | revenue intersegment | 2021-04-01 → 2022-03-31 | ¥92m |
| Special Steelsreportable segment | segment assets | at 2022-03-31 | ¥29.6bn |
| Special Steelsreportable segment | segment profit | 2021-04-01 → 2022-03-31 | ¥513m |
| —segment total | capex | 2021-04-01 → 2022-03-31 | ¥472m |
| —segment total | depreciation | 2021-04-01 → 2022-03-31 | ¥1.3bn |
| —segment total | revenue | 2021-04-01 → 2022-03-31 | ¥41.8bn |
| —segment total | revenue external | 2021-04-01 → 2022-03-31 | ¥41.7bn |
| —segment total | revenue intersegment | 2021-04-01 → 2022-03-31 | ¥98m |
| —segment total | segment assets | at 2022-03-31 | ¥39.3bn |
| —segment total | segment profit | 2021-04-01 → 2022-03-31 | ¥530m |
| Special Steelsreportable segment | employees | at 2023-03-31 | 509 pure |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 1,454
| Item | Context | Value | Unit |
|---|---|---|---|
| Purchase of treasury stock | CurrentYearDuration_NonConsolidatedMember | -0 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 2000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_RevaluationReserveForLandMember | － | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 2000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember | 2000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 2000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_RevaluationReserveForLandMember | － | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 2000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember | 800000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 149000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_RevaluationReserveForLandMember | 1105000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 1254000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember | 14807000000 | JPY |
| Haulage expenses sga | Prior1YearDuration_NonConsolidatedMember | 428000000 | JPY |
| Haulage expenses sga | CurrentYearDuration_NonConsolidatedMember | 382000000 | JPY |
| Salaries and allowances and welfare expenses sga | Prior1YearDuration_NonConsolidatedMember | 572000000 | JPY |
| Salaries and allowances and welfare expenses sga | CurrentYearDuration_NonConsolidatedMember | 607000000 | JPY |
| Provision for bonuses sga | Prior1YearDuration_NonConsolidatedMember | 31000000 | JPY |
| Provision for bonuses sga | CurrentYearDuration_NonConsolidatedMember | 34000000 | JPY |
| Retirement benefit expenses sga | Prior1YearDuration_NonConsolidatedMember | 38000000 | JPY |
| Retirement benefit expenses sga | CurrentYearDuration_NonConsolidatedMember | 34000000 | JPY |
| Depreciation sga | Prior1YearDuration_NonConsolidatedMember | 1000000 | JPY |
| Depreciation sga | CurrentYearDuration_NonConsolidatedMember | 1000000 | JPY |
| Provision of allowance for doubtful accounts sga | Prior1YearDuration_NonConsolidatedMember | 39000000 | JPY |
| Provision of allowance for doubtful accounts sga | CurrentYearDuration_NonConsolidatedMember | － | JPY |
| Document title cover page | FilingDateInstant | Original text (Japanese)有価証券報告書 | |
| Clause of stipulation cover page | FilingDateInstant | Original text (Japanese)金融商品取引法第24条第１項 | |
| Place of filing cover page | FilingDateInstant | Original text (Japanese)関東財務局長 | |
| Filing date cover page | FilingDateInstant | 2023-06-28 | |
| Fiscal year cover page | FilingDateInstant | Original text (Japanese)第98期（自 2022年４月１日 至 2023年３月31日） | |
| Company name cover page | FilingDateInstant | Original text (Japanese)日本高周波鋼業株式会社 | |
| Company name in english cover page | FilingDateInstant | Nippon Koshuha Steel Co.,Ltd. | |
| Title and name of representative cover page | FilingDateInstant | Original text (Japanese)代表取締役社長 小椋 大輔 | |
| Address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)東京都千代田区岩本町一丁目10番５号 | |
| Telephone number address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)03-5687-6023（代表） | |
| Name of contact person address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)取締役常務執行役員総務企画本部長 村越 久人 | |
| Nearest place of contact cover page | FilingDateInstant | Original text (Japanese)東京都千代田区岩本町一丁目10番５号 | |
| Telephone number nearest place of contact cover page | FilingDateInstant | Original text (Japanese)03-5687-6023（代表） | |
| Name of contact person nearest place of contact cover page | FilingDateInstant | Original text (Japanese)取締役常務執行役員総務企画本部長 村越 久人 | |
| Place for public inspection cover page (text) | FilingDateInstant | Text · Plus | |
| Edinet code | FilingDateInstant | E01240 | |
| Fund code | FilingDateInstant | － | |
| Security code | FilingDateInstant | 54760 | |
| Filer name in japanese | FilingDateInstant | Original text (Japanese)日本高周波鋼業株式会社 | |
| Filer name in english | FilingDateInstant | Nippon Koshuha Steel Co.,Ltd. | |
| Fund name in japanese | FilingDateInstant | － | |
| Fund name in english | FilingDateInstant | － | |
| Cabinet office ordinance | FilingDateInstant | Original text (Japanese)企業内容等の開示に関する内閣府令 | |
| Document type | FilingDateInstant | Original text (Japanese)第三号様式 | |
| Accounting standards | FilingDateInstant | Japan GAAP |
Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.
Data checks · 24 of 24 passed
| balance sheet identity | pass |
| balance sheet identity | pass |
| balance sheet identity | pass rounding |
| balance sheet identity | pass |
| dei present | pass |
| period resolution | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |