Annual report
6834.TEDINET S100VYS0
Period2024-04-01 → 2025-03-31
Filed2025-06-20
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 152
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥20.0bn | 2024-04-01 → 2025-03-31 | Cons. | Net sales |
| Revenue | ¥15.8bn | 2023-04-01 → 2024-03-31 | Cons. | Net sales |
| Revenue | ¥16.3bn | 2022-04-01 → 2023-03-31d | Cons. | Net sales (5-year summary) |
| Revenue | ¥16.2bn | 2021-04-01 → 2022-03-31d | Cons. | Net sales (5-year summary) |
| Revenue | ¥14.8bn | 2020-04-01 → 2021-03-31d | Cons. | Net sales (5-year summary) |
| Operating income | ¥2.8bn | 2024-04-01 → 2025-03-31 | Cons. | Operating income |
| Operating income | ¥1.1bn | 2023-04-01 → 2024-03-31 | Cons. | Operating income |
| Ordinary income | ¥3.0bn | 2024-04-01 → 2025-03-31 | Cons. | Ordinary income |
| Ordinary income | ¥1.3bn | 2023-04-01 → 2024-03-31 | Cons. | Ordinary income |
| Ordinary income | ¥1.6bn | 2022-04-01 → 2023-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥1.6bn | 2021-04-01 → 2022-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥1.4bn | 2020-04-01 → 2021-03-31d | Cons. | Ordinary income loss (5-year summary) |
| Profit before tax | ¥3.0bn | 2024-04-01 → 2025-03-31 | Cons. | Income before income taxes |
| Profit before tax | ¥1.2bn | 2023-04-01 → 2024-03-31 | Cons. | Income before income taxes |
| Net income (owners) | ¥2.2bn | 2024-04-01 → 2025-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥761m | 2023-04-01 → 2024-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥1.1bn | 2022-04-01 → 2023-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥1.2bn | 2021-04-01 → 2022-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥984m | 2020-04-01 → 2021-03-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income | ¥2.2bn | 2024-04-01 → 2025-03-31 | Cons. | Profit loss |
| Net income | ¥763m | 2023-04-01 → 2024-03-31 | Cons. | Profit loss |
| Total assets | ¥34.4bn | at 2025-03-31 | Cons. | Assets |
| Total assets | ¥32.2bn | at 2024-03-31 | Cons. | Assets |
| Total assets | ¥31.3bn | at 2023-03-31d | Cons. | Total assets (5-year summary) |
| Total assets | ¥30.3bn | at 2022-03-31d | Cons. | Total assets (5-year summary) |
| Total assets | ¥29.0bn | at 2021-03-31d | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥6.2bn | at 2025-03-31 | Cons. | Liabilities |
| Total liabilities | ¥5.0bn | at 2024-03-31 | Cons. | Liabilities |
| Net assets / equity | ¥28.1bn | at 2025-03-31 | Cons. | Net assets |
| Net assets / equity | ¥27.2bn | at 2024-03-31 | Cons. | Net assets |
| Net assets / equity | ¥26.5bn | at 2023-03-31d | Cons. | Net assets |
| Net assets / equity | ¥25.5bn | at 2022-03-31d | Cons. | Net assets (5-year summary) |
| Net assets / equity | ¥24.2bn | at 2021-03-31d | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥14.1bn | at 2025-03-31 | Cons. | Cash and deposits |
| Cash and deposits | ¥14.1bn | at 2024-03-31 | Cons. | Cash and deposits |
| Cash & equivalents | ¥7.3bn | at 2025-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥5.1bn | at 2024-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥5.2bn | at 2023-03-31d | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥4.2bn | at 2022-03-31d | Cons. | Cash and cash equivalents (5-year summary) |
| Cash & equivalents | ¥4.9bn | at 2021-03-31d | Cons. | Cash and cash equivalents (5-year summary) |
| Operating cash flow | ¥3.1bn | 2024-04-01 → 2025-03-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥1.8bn | 2023-04-01 → 2024-03-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥2.3bn | 2022-04-01 → 2023-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥1.9bn | 2021-04-01 → 2022-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥2.4bn | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Investing cash flow | ¥1.0bn | 2024-04-01 → 2025-03-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥1.5bn | 2023-04-01 → 2024-03-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥950m | 2022-04-01 → 2023-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥2.3bn | 2021-04-01 → 2022-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥626m | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Financing cash flow | −¥2.0bn | 2024-04-01 → 2025-03-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥508m | 2023-04-01 → 2024-03-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥513m | 2022-04-01 → 2023-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥429m | 2021-04-01 → 2022-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥411m | 2020-04-01 → 2021-03-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| EPS (basic) | ¥245.34 | 2024-04-01 → 2025-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥83.42 | 2023-04-01 → 2024-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥118.64 | 2022-04-01 → 2023-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥126.05 | 2021-04-01 → 2022-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥107.88 | 2020-04-01 → 2021-03-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥126.04 | 2021-04-01 → 2022-03-31d | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥107.67 | 2020-04-01 → 2021-03-31d | Cons. | Diluted earnings per share (5-year summary) |
| Net assets per share | ¥3,142.58 | at 2025-03-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥2,976.87 | at 2024-03-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥2,898.91 | at 2023-03-31d | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥2,785.76 | at 2022-03-31d | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥2,645.78 | at 2021-03-31d | Cons. | Net assets per share (5-year summary) |
| Equity ratio | 81.4% | at 2025-03-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 84.3% | at 2024-03-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 84.4% | at 2023-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 83.8% | at 2022-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 83.3% | at 2021-03-31d | Cons. | Equity to asset ratio (5-year summary) |
| ROE | 8.1% | 2024-04-01 → 2025-03-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 2.8% | 2023-04-01 → 2024-03-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 4.2% | 2022-04-01 → 2023-03-31d | Cons. | Rate of return on equity (5-year summary) |
| ROE | 4.6% | 2021-04-01 → 2022-03-31d | Cons. | Rate of return on equity (5-year summary) |
| ROE | 4.1% | 2020-04-01 → 2021-03-31d | Cons. | Rate of return on equity (5-year summary) |
| Employees | 936 | at 2025-03-31 | Cons. | Number of employees |
| Employees | 752 | at 2024-03-31 | Cons. | Number of employees |
| Employees | 914 | at 2023-03-31d | Cons. | Number of employees |
| Employees | 941 | at 2022-03-31d | Cons. | Number of employees |
| Employees | 870 | at 2021-03-31d | Cons. | Number of employees |
| Revenue | ¥6.5bn | 2024-04-01 → 2025-03-31 | Standalone | Net sales |
| Revenue | ¥4.2bn | 2023-04-01 → 2024-03-31 | Standalone | Net sales |
| Revenue | ¥4.6bn | 2022-04-01 → 2023-03-31d | Standalone | Net sales (5-year summary) |
| Revenue | ¥4.8bn | 2021-04-01 → 2022-03-31d | Standalone | Net sales (5-year summary) |
| Revenue | ¥4.0bn | 2020-04-01 → 2021-03-31d | Standalone | Net sales (5-year summary) |
| Operating income | ¥1.2bn | 2024-04-01 → 2025-03-31 | Standalone | Operating income |
| Operating income | ¥225m | 2023-04-01 → 2024-03-31 | Standalone | Operating income |
| Ordinary income | ¥2.4bn | 2024-04-01 → 2025-03-31 | Standalone | Ordinary income |
| Ordinary income | ¥1.3bn | 2023-04-01 → 2024-03-31 | Standalone | Ordinary income |
| Ordinary income | ¥1.4bn | 2022-04-01 → 2023-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥1.4bn | 2021-04-01 → 2022-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥1.0bn | 2020-04-01 → 2021-03-31d | Standalone | Ordinary income loss (5-year summary) |
| Profit before tax | ¥2.4bn | 2024-04-01 → 2025-03-31 | Standalone | Income before income taxes |
| Profit before tax | ¥1.3bn | 2023-04-01 → 2024-03-31 | Standalone | Income before income taxes |
| Net income | ¥2.0bn | 2024-04-01 → 2025-03-31 | Standalone | Profit loss |
| Net income | ¥1.1bn | 2023-04-01 → 2024-03-31 | Standalone | Profit loss |
| Net income | ¥1.3bn | 2022-04-01 → 2023-03-31d | Standalone | Net income loss (5-year summary) |
| Net income | ¥1.2bn | 2021-04-01 → 2022-03-31d | Standalone | Net income loss (5-year summary) |
| Net income | ¥1.0bn | 2020-04-01 → 2021-03-31d | Standalone | Net income loss (5-year summary) |
| Total assets | ¥26.8bn | at 2025-03-31 | Standalone | Assets |
| Total assets | ¥26.3bn | at 2024-03-31 | Standalone | Assets |
| Total assets | ¥25.5bn | at 2023-03-31d | Standalone | Total assets (5-year summary) |
| Total assets | ¥24.7bn | at 2022-03-31d | Standalone | Total assets (5-year summary) |
| Total assets | ¥23.7bn | at 2021-03-31d | Standalone | Total assets (5-year summary) |
| Total liabilities | ¥2.4bn | at 2025-03-31 | Standalone | Liabilities |
| Total liabilities | ¥1.9bn | at 2024-03-31 | Standalone | Liabilities |
| Net assets / equity | ¥24.5bn | at 2025-03-31 | Standalone | Net assets |
| Net assets / equity | ¥24.5bn | at 2024-03-31 | Standalone | Net assets |
| Net assets / equity | ¥23.8bn | at 2023-03-31d | Standalone | Net assets |
| Net assets / equity | ¥23.0bn | at 2022-03-31d | Standalone | Net assets (5-year summary) |
| Net assets / equity | ¥22.1bn | at 2021-03-31d | Standalone | Net assets (5-year summary) |
| Cash and deposits | ¥9.4bn | at 2025-03-31 | Standalone | Cash and deposits |
| Cash and deposits | ¥11.0bn | at 2024-03-31 | Standalone | Cash and deposits |
| EPS (basic) | ¥221.28 | 2024-04-01 → 2025-03-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥122.25 | 2023-04-01 → 2024-03-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥144.44 | 2022-04-01 → 2023-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥136.13 | 2021-04-01 → 2022-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥110 | 2020-04-01 → 2021-03-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥136.12 | 2021-04-01 → 2022-03-31d | Standalone | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥109.78 | 2020-04-01 → 2021-03-31d | Standalone | Diluted earnings per share (5-year summary) |
| Dividend per share | ¥65 | 2024-04-01 → 2025-03-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥55 | 2023-04-01 → 2024-03-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥50 | 2022-04-01 → 2023-03-31d | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥50 | 2021-04-01 → 2022-03-31d | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥40 | 2020-04-01 → 2021-03-31d | Standalone | Dividend paid per share (5-year summary) |
| Net assets per share | ¥2,744.97 | at 2025-03-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥2,683.7 | at 2024-03-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥2,610.95 | at 2023-03-31d | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥2,516.73 | at 2022-03-31d | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥2,421.05 | at 2021-03-31d | Standalone | Net assets per share (5-year summary) |
| Equity ratio | 91.2% | at 2025-03-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 93.0% | at 2024-03-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 93.3% | at 2023-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 92.8% | at 2022-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 93.1% | at 2021-03-31d | Standalone | Equity to asset ratio (5-year summary) |
| ROE | 8.2% | 2024-04-01 → 2025-03-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 4.6% | 2023-04-01 → 2024-03-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 5.6% | 2022-04-01 → 2023-03-31d | Standalone | Rate of return on equity (5-year summary) |
| ROE | 5.5% | 2021-04-01 → 2022-03-31d | Standalone | Rate of return on equity (5-year summary) |
| ROE | 4.6% | 2020-04-01 → 2021-03-31d | Standalone | Rate of return on equity (5-year summary) |
| Shares issued | 9,333,654 | at 2025-03-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,333,654 | at 2024-03-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,333,654 | at 2023-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,333,654 | at 2022-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,333,654 | at 2021-03-31d | Standalone | Total number of issued shares (5-year summary) |
| Employees | 167 | at 2025-03-31 | Standalone | Number of employees |
| Employees | 173 | at 2024-03-31 | Standalone | Number of employees |
| Employees | 177 | at 2023-03-31d | Standalone | Number of employees |
| Employees | 177 | at 2022-03-31d | Standalone | Number of employees |
| Employees | 174 | at 2021-03-31d | 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 · 37
| Segment | Item | Period | Value |
|---|---|---|---|
| Reconciling Itemsreconciling | capex | 2024-04-01 → 2025-03-31 | ¥60m |
| Reconciling Itemsreconciling | revenue | 2024-04-01 → 2025-03-31 | −¥30m |
| Reconciling Itemsreconciling | revenue intersegment | 2024-04-01 → 2025-03-31 | −¥30m |
| Reconciling Itemsreconciling | segment assets | at 2025-03-31 | ¥12.3bn |
| Optical Related Productsreportable segment | capex | 2024-04-01 → 2025-03-31 | ¥275m |
| Optical Related Productsreportable segment | depreciation | 2024-04-01 → 2025-03-31 | ¥355m |
| Optical Related Productsreportable segment | employees | at 2025-03-31 | 502 pure |
| Optical Related Productsreportable segment | revenue | 2024-04-01 → 2025-03-31 | ¥10.8bn |
| Optical Related Productsreportable segment | revenue external | 2024-04-01 → 2025-03-31 | ¥10.8bn |
| Optical Related Productsreportable segment | revenue intersegment | 2024-04-01 → 2025-03-31 | ¥207,000 |
| Optical Related Productsreportable segment | segment assets | at 2025-03-31 | ¥12.1bn |
| Optical Related Productsreportable segment | segment profit | 2024-04-01 → 2025-03-31 | ¥2.2bn |
| Total Of Reportable Segments And Otherssegment total | capex | 2024-04-01 → 2025-03-31 | ¥538m |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2024-04-01 → 2025-03-31 | ¥853m |
| Total Of Reportable Segments And Otherssegment total | revenue | 2024-04-01 → 2025-03-31 | ¥20.0bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2024-04-01 → 2025-03-31 | ¥20.0bn |
| Total Of Reportable Segments And Otherssegment total | revenue intersegment | 2024-04-01 → 2025-03-31 | ¥30m |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2025-03-31 | ¥22.1bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2024-04-01 → 2025-03-31 | ¥2.8bn |
| Reconciling Itemsreconciling | capex | 2023-04-01 → 2024-03-31 | ¥52m |
| Reconciling Itemsreconciling | revenue | 2023-04-01 → 2024-03-31 | −¥36m |
| Reconciling Itemsreconciling | revenue intersegment | 2023-04-01 → 2024-03-31 | −¥36m |
| Reconciling Itemsreconciling | segment assets | at 2024-03-31 | ¥13.8bn |
| Optical Related Productsreportable segment | capex | 2023-04-01 → 2024-03-31 | ¥96m |
| Optical Related Productsreportable segment | depreciation | 2023-04-01 → 2024-03-31 | ¥340m |
| Optical Related Productsreportable segment | revenue | 2023-04-01 → 2024-03-31 | ¥7.1bn |
| Optical Related Productsreportable segment | revenue external | 2023-04-01 → 2024-03-31 | ¥7.1bn |
| Optical Related Productsreportable segment | segment assets | at 2024-03-31 | ¥8.3bn |
| Optical Related Productsreportable segment | segment profit | 2023-04-01 → 2024-03-31 | ¥388m |
| Total Of Reportable Segments And Otherssegment total | capex | 2023-04-01 → 2024-03-31 | ¥337m |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2023-04-01 → 2024-03-31 | ¥856m |
| Total Of Reportable Segments And Otherssegment total | revenue | 2023-04-01 → 2024-03-31 | ¥15.8bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2023-04-01 → 2024-03-31 | ¥15.8bn |
| Total Of Reportable Segments And Otherssegment total | revenue intersegment | 2023-04-01 → 2024-03-31 | ¥36m |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2024-03-31 | ¥18.4bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2023-04-01 → 2024-03-31 | ¥1.1bn |
| Optical Related Productsreportable segment | employees | at 2025-03-31 | 74 pure |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 1,511
| Item | Context | Value | Unit |
|---|---|---|---|
| Net assets | Prior1YearInstant_NonConsolidatedMember | 24483801000 | JPY |
| Dividends from surplus | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | -785390000 | JPY |
| Dividends from surplus | CurrentYearDuration_NonConsolidatedMember | -785390000 | JPY |
| Profit loss | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | 2007149000 | JPY |
| Profit loss | CurrentYearDuration_NonConsolidatedMember | 2007149000 | JPY |
| Purchase of treasury stock | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | -1315467000 | JPY |
| Purchase of treasury stock | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | -1315467000 | JPY |
| Purchase of treasury stock | CurrentYearDuration_NonConsolidatedMember | -1315467000 | JPY |
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | 57484000 | JPY |
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | 57613000 | JPY |
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember | 57613000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 4054000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 4054000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember | 4054000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | -1257983000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | -36094000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 4054000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 4054000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember | -32039000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_TreasuryStockMember | -1796855000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ShareholdersEquityMember | 24432104000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 19658000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 19658000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember | 24451762000 | JPY |
| Salaries sga | Prior1YearDuration_NonConsolidatedMember | 417714000 | JPY |
| Salaries sga | CurrentYearDuration_NonConsolidatedMember | 389960000 | JPY |
| Provision for share based remuneration for directors and other officers sga | Prior1YearDuration_NonConsolidatedMember | 24651000 | JPY |
| Provision for share based remuneration for directors and other officers sga | CurrentYearDuration_NonConsolidatedMember | 24651000 | JPY |
| Bonuses sga | Prior1YearDuration_NonConsolidatedMember | 126380000 | JPY |
| Bonuses sga | CurrentYearDuration_NonConsolidatedMember | 201101000 | JPY |
| Retirement benefit expenses sga | Prior1YearDuration_NonConsolidatedMember | 41245000 | JPY |
| Retirement benefit expenses sga | CurrentYearDuration_NonConsolidatedMember | 36478000 | JPY |
| Depreciation sga | Prior1YearDuration_NonConsolidatedMember | 72913000 | JPY |
| Depreciation sga | CurrentYearDuration_NonConsolidatedMember | 82787000 | 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 | 2025-06-20 | |
| Fiscal year cover page | FilingDateInstant | Original text (Japanese)第53期（自 2024年４月１日 至 2025年３月31日） | |
| Company name cover page | FilingDateInstant | Original text (Japanese)株式会社精工技研 | |
| Company name in english cover page | FilingDateInstant | SEIKOH GIKEN Co., Ltd. | |
| Title and name of representative cover page | FilingDateInstant | Original text (Japanese)代表取締役社長 上野 淳 | |
| Address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)千葉県松戸市松飛台296番地の１ | |
| Telephone number address of registered headquarter cover page | FilingDateInstant | (047)388－6401 | |
| Name of contact person address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)取締役 管理部長 斎藤 祐司 | |
| Nearest place of contact cover page | FilingDateInstant | Original text (Japanese)千葉県松戸市松飛台296番地の１ | |
| Telephone number nearest place of contact cover page | FilingDateInstant | (047)388－6401 | |
| Name of contact person nearest place of contact cover page | FilingDateInstant | Original text (Japanese)取締役 管理部長 斎藤 祐司 | |
| Place for public inspection cover page (text) | FilingDateInstant | Text · Plus | |
| Edinet code | FilingDateInstant | E01717 |
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 rounding |
| balance sheet identity | pass |
| 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 |