Annual report
6524.TEDINET S100XT3K
Period2025-01-01 → 2025-12-31
Filed2026-03-26
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 150
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥17.5bn | 2025-01-01 → 2025-12-31 | Cons. | Net sales |
| Revenue | ¥15.9bn | 2024-01-01 → 2024-12-31 | Cons. | Net sales |
| Revenue | ¥13.5bn | 2023-01-01 → 2023-12-31v | Cons. | Net sales (5-year summary) |
| Revenue | ¥15.7bn | 2022-01-01 → 2022-12-31v | Cons. | Net sales (5-year summary) |
| Revenue | ¥14.6bn | 2021-01-01 → 2021-12-31d | Cons. | Net sales (5-year summary) |
| Operating income | ¥4.6bn | 2025-01-01 → 2025-12-31 | Cons. | Operating income |
| Operating income | ¥3.9bn | 2024-01-01 → 2024-12-31 | Cons. | Operating income |
| Ordinary income | ¥4.5bn | 2025-01-01 → 2025-12-31 | Cons. | Ordinary income |
| Ordinary income | ¥4.9bn | 2024-01-01 → 2024-12-31 | Cons. | Ordinary income |
| Ordinary income | ¥3.2bn | 2023-01-01 → 2023-12-31v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥4.4bn | 2022-01-01 → 2022-12-31v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥4.4bn | 2021-01-01 → 2021-12-31d | Cons. | Ordinary income loss (5-year summary) |
| Profit before tax | ¥4.4bn | 2025-01-01 → 2025-12-31 | Cons. | Income before income taxes |
| Profit before tax | ¥4.9bn | 2024-01-01 → 2024-12-31 | Cons. | Income before income taxes |
| Net income (owners) | ¥3.0bn | 2025-01-01 → 2025-12-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥3.3bn | 2024-01-01 → 2024-12-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥1.9bn | 2023-01-01 → 2023-12-31v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥3.1bn | 2022-01-01 → 2022-12-31v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥3.0bn | 2021-01-01 → 2021-12-31d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income | ¥3.0bn | 2025-01-01 → 2025-12-31 | Cons. | Profit loss |
| Net income | ¥3.3bn | 2024-01-01 → 2024-12-31 | Cons. | Profit loss |
| Total assets | ¥28.3bn | at 2025-12-31 | Cons. | Assets |
| Total assets | ¥28.7bn | at 2024-12-31 | Cons. | Assets |
| Total assets | ¥25.0bn | at 2023-12-31v | Cons. | Total assets (5-year summary) |
| Total assets | ¥24.3bn | at 2022-12-31v | Cons. | Total assets (5-year summary) |
| Total assets | ¥22.5bn | at 2021-12-31d | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥4.9bn | at 2025-12-31 | Cons. | Liabilities |
| Total liabilities | ¥5.3bn | at 2024-12-31 | Cons. | Liabilities |
| Net assets / equity | ¥23.4bn | at 2025-12-31 | Cons. | Net assets |
| Net assets / equity | ¥23.4bn | at 2024-12-31 | Cons. | Net assets |
| Net assets / equity | ¥20.1bn | at 2023-12-31v | Cons. | Net assets |
| Net assets / equity | ¥18.3bn | at 2022-12-31v | Cons. | Net assets (5-year summary) |
| Net assets / equity | ¥15.1bn | at 2021-12-31d | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥8.5bn | at 2025-12-31 | Cons. | Cash and deposits |
| Cash and deposits | ¥9.3bn | at 2024-12-31 | Cons. | Cash and deposits |
| Cash & equivalents | ¥8.4bn | at 2025-12-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥9.8bn | at 2024-12-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥10.4bn | at 2023-12-31v | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥9.4bn | at 2022-12-31v | Cons. | Cash and cash equivalents (5-year summary) |
| Cash & equivalents | ¥11.0bn | at 2021-12-31d | Cons. | Cash and cash equivalents (5-year summary) |
| Operating cash flow | ¥3.3bn | 2025-01-01 → 2025-12-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥3.8bn | 2024-01-01 → 2024-12-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥3.6bn | 2023-01-01 → 2023-12-31v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥2.8bn | 2022-01-01 → 2022-12-31v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥3.0bn | 2021-01-01 → 2021-12-31d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Investing cash flow | −¥1.2bn | 2025-01-01 → 2025-12-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥3.1bn | 2024-01-01 → 2024-12-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥1.0bn | 2023-01-01 → 2023-12-31v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥1.9bn | 2022-01-01 → 2022-12-31v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥406m | 2021-01-01 → 2021-12-31d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Financing cash flow | −¥3.6bn | 2025-01-01 → 2025-12-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥1.6bn | 2024-01-01 → 2024-12-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥1.6bn | 2023-01-01 → 2023-12-31v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥2.6bn | 2022-01-01 → 2022-12-31v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | ¥4.6bn | 2021-01-01 → 2021-12-31d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| EPS (basic) | ¥114.73 | 2025-01-01 → 2025-12-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥120.5 | 2024-01-01 → 2024-12-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥70.55 | 2023-01-01 → 2023-12-31v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥115.38 | 2022-01-01 → 2022-12-31v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥135.57 | 2021-01-01 → 2021-12-31d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥132.7 | 2021-01-01 → 2021-12-31d | Cons. | Diluted earnings per share (5-year summary) |
| Net assets per share | ¥904.88 | at 2025-12-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥867.95 | at 2024-12-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥743.23 | at 2023-12-31v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥677.9 | at 2022-12-31v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥571.91 | at 2021-12-31d | Cons. | Net assets per share (5-year summary) |
| Equity ratio | 82.8% | at 2025-12-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 81.7% | at 2024-12-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 80.3% | at 2023-12-31v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 75.3% | at 2022-12-31v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 67.2% | at 2021-12-31d | Cons. | Equity to asset ratio (5-year summary) |
| ROE | 12.8% | 2025-01-01 → 2025-12-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 15.0% | 2024-01-01 → 2024-12-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 9.9% | 2023-01-01 → 2023-12-31v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 18.3% | 2022-01-01 → 2022-12-31v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 28.3% | 2021-01-01 → 2021-12-31d | Cons. | Rate of return on equity (5-year summary) |
| Employees | 1,710 | at 2025-12-31 | Cons. | Number of employees |
| Employees | 1,536 | at 2024-12-31 | Cons. | Number of employees |
| Employees | 1,430 | at 2023-12-31v | Cons. | Number of employees |
| Employees | 1,659 | at 2022-12-31v | Cons. | Number of employees |
| Employees | 1,639 | at 2021-12-31d | Cons. | Number of employees |
| Revenue | ¥12.4bn | 2025-01-01 → 2025-12-31 | Standalone | Net sales |
| Revenue | ¥10.9bn | 2024-01-01 → 2024-12-31 | Standalone | Net sales |
| Revenue | ¥9.2bn | 2023-01-01 → 2023-12-31v | Standalone | Net sales (5-year summary) |
| Revenue | ¥10.6bn | 2022-01-01 → 2022-12-31v | Standalone | Net sales (5-year summary) |
| Revenue | ¥10.2bn | 2021-01-01 → 2021-12-31d | Standalone | Net sales (5-year summary) |
| Operating income | ¥3.6bn | 2025-01-01 → 2025-12-31 | Standalone | Operating income |
| Operating income | ¥3.5bn | 2024-01-01 → 2024-12-31 | Standalone | Operating income |
| Ordinary income | ¥3.9bn | 2025-01-01 → 2025-12-31 | Standalone | Ordinary income |
| Ordinary income | ¥4.5bn | 2024-01-01 → 2024-12-31 | Standalone | Ordinary income |
| Ordinary income | ¥3.2bn | 2023-01-01 → 2023-12-31v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥3.8bn | 2022-01-01 → 2022-12-31v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥4.0bn | 2021-01-01 → 2021-12-31d | Standalone | Ordinary income loss (5-year summary) |
| Profit before tax | ¥3.4bn | 2025-01-01 → 2025-12-31 | Standalone | Income before income taxes |
| Profit before tax | ¥4.5bn | 2024-01-01 → 2024-12-31 | Standalone | Income before income taxes |
| Net income | ¥2.2bn | 2025-01-01 → 2025-12-31 | Standalone | Profit loss |
| Net income | ¥3.1bn | 2024-01-01 → 2024-12-31 | Standalone | Profit loss |
| Net income | ¥2.2bn | 2023-01-01 → 2023-12-31v | Standalone | Net income loss (5-year summary) |
| Net income | ¥2.6bn | 2022-01-01 → 2022-12-31v | Standalone | Net income loss (5-year summary) |
| Net income | ¥2.7bn | 2021-01-01 → 2021-12-31d | Standalone | Net income loss (5-year summary) |
| Total assets | ¥21.7bn | at 2025-12-31 | Standalone | Assets |
| Total assets | ¥22.9bn | at 2024-12-31 | Standalone | Assets |
| Total assets | ¥19.9bn | at 2023-12-31v | Standalone | Total assets (5-year summary) |
| Total assets | ¥19.4bn | at 2022-12-31v | Standalone | Total assets (5-year summary) |
| Total assets | ¥19.1bn | at 2021-12-31d | Standalone | Total assets (5-year summary) |
| Total liabilities | ¥2.5bn | at 2025-12-31 | Standalone | Liabilities |
| Total liabilities | ¥2.7bn | at 2024-12-31 | Standalone | Liabilities |
| Net assets / equity | ¥19.2bn | at 2025-12-31 | Standalone | Net assets |
| Net assets / equity | ¥20.2bn | at 2024-12-31 | Standalone | Net assets |
| Net assets / equity | ¥17.6bn | at 2023-12-31v | Standalone | Net assets |
| Net assets / equity | ¥15.9bn | at 2022-12-31v | Standalone | Net assets (5-year summary) |
| Net assets / equity | ¥13.7bn | at 2021-12-31d | Standalone | Net assets (5-year summary) |
| Cash and deposits | ¥5.1bn | at 2025-12-31 | Standalone | Cash and deposits |
| Cash and deposits | ¥6.6bn | at 2024-12-31 | Standalone | Cash and deposits |
| EPS (basic) | ¥85.65 | 2025-01-01 → 2025-12-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥115.77 | 2024-01-01 → 2024-12-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥82.15 | 2023-01-01 → 2023-12-31v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥98.11 | 2022-01-01 → 2022-12-31v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥122.9 | 2021-01-01 → 2021-12-31d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥120.3 | 2021-01-01 → 2021-12-31d | Standalone | Diluted earnings per share (5-year summary) |
| Dividend per share | ¥33 | 2025-01-01 → 2025-12-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥30 | 2024-01-01 → 2024-12-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥60 | 2023-01-01 → 2023-12-31v | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥55 | 2022-01-01 → 2022-12-31v | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥55 | 2021-01-01 → 2021-12-31d | Standalone | Dividend paid per share (5-year summary) |
| Net assets per share | ¥741.26 | at 2025-12-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥747.07 | at 2024-12-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥651.92 | at 2023-12-31v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥587.89 | at 2022-12-31v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥516.74 | at 2021-12-31d | Standalone | Net assets per share (5-year summary) |
| Equity ratio | 88.4% | at 2025-12-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 88.2% | at 2024-12-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 88.4% | at 2023-12-31v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 81.6% | at 2022-12-31v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 71.8% | at 2021-12-31d | Standalone | Equity to asset ratio (5-year summary) |
| ROE | 11.3% | 2025-01-01 → 2025-12-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 16.6% | 2024-01-01 → 2024-12-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 13.3% | 2023-01-01 → 2023-12-31v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 17.6% | 2022-01-01 → 2022-12-31v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 28.5% | 2021-01-01 → 2021-12-31d | Standalone | Rate of return on equity (5-year summary) |
| Shares issued | 26,000,000 | at 2025-12-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 27,000,000 | at 2024-12-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,000,000 | at 2023-12-31v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,000,000 | at 2022-12-31v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 9,000,000 | at 2021-12-31d | Standalone | Total number of issued shares (5-year summary) |
| Employees | 160 | at 2025-12-31 | Standalone | Number of employees |
| Employees | 168 | at 2024-12-31 | Standalone | Number of employees |
| Employees | 166 | at 2023-12-31v | Standalone | Number of employees |
| Employees | 160 | at 2022-12-31v | Standalone | Number of employees |
| Employees | 158 | at 2021-12-31d | 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 · 44
| Segment | Item | Period | Value |
|---|---|---|---|
| Reconciling Itemsreconciling | capex | 2025-01-01 → 2025-12-31 | ¥217m |
| Reconciling Itemsreconciling | segment assets | at 2025-12-31 | ¥13.4bn |
| Lead Terminals Businessreportable segment | capex | 2025-01-01 → 2025-12-31 | ¥151m |
| Lead Terminals Businessreportable segment | depreciation | 2025-01-01 → 2025-12-31 | ¥593m |
| Lead Terminals Businessreportable segment | employees | at 2025-12-31 | 616 pure |
| Lead Terminals Businessreportable segment | revenue | 2025-01-01 → 2025-12-31 | ¥8.8bn |
| Lead Terminals Businessreportable segment | revenue external | 2025-01-01 → 2025-12-31 | ¥8.8bn |
| Lead Terminals Businessreportable segment | segment assets | at 2025-12-31 | ¥9.0bn |
| Lead Terminals Businessreportable segment | segment profit | 2025-01-01 → 2025-12-31 | ¥766m |
| Optical Communication Parts And Devices Businessreportable segment | capex | 2025-01-01 → 2025-12-31 | ¥634m |
| Optical Communication Parts And Devices Businessreportable segment | depreciation | 2025-01-01 → 2025-12-31 | ¥379m |
| Optical Communication Parts And Devices Businessreportable segment | employees | at 2025-12-31 | 978 pure |
| Optical Communication Parts And Devices Businessreportable segment | revenue | 2025-01-01 → 2025-12-31 | ¥8.7bn |
| Optical Communication Parts And Devices Businessreportable segment | revenue external | 2025-01-01 → 2025-12-31 | ¥8.7bn |
| Optical Communication Parts And Devices Businessreportable segment | segment assets | at 2025-12-31 | ¥5.9bn |
| Optical Communication Parts And Devices Businessreportable segment | segment profit | 2025-01-01 → 2025-12-31 | ¥3.9bn |
| Total Of Reportable Segments And Otherssegment total | capex | 2025-01-01 → 2025-12-31 | ¥785m |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2025-01-01 → 2025-12-31 | ¥973m |
| Total Of Reportable Segments And Otherssegment total | revenue | 2025-01-01 → 2025-12-31 | ¥17.5bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2025-01-01 → 2025-12-31 | ¥17.5bn |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2025-12-31 | ¥14.9bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2025-01-01 → 2025-12-31 | ¥4.6bn |
| Reconciling Itemsreconciling | capex | 2024-01-01 → 2024-12-31 | ¥1.0bn |
| Reconciling Itemsreconciling | segment assets | at 2024-12-31 | ¥14.6bn |
| Lead Terminals Businessreportable segment | capex | 2024-01-01 → 2024-12-31 | ¥342m |
| Lead Terminals Businessreportable segment | depreciation | 2024-01-01 → 2024-12-31 | ¥585m |
| Lead Terminals Businessreportable segment | revenue | 2024-01-01 → 2024-12-31 | ¥8.4bn |
| Lead Terminals Businessreportable segment | revenue external | 2024-01-01 → 2024-12-31 | ¥8.4bn |
| Lead Terminals Businessreportable segment | segment assets | at 2024-12-31 | ¥8.6bn |
| Lead Terminals Businessreportable segment | segment profit | 2024-01-01 → 2024-12-31 | ¥403m |
| Optical Communication Parts And Devices Businessreportable segment | capex | 2024-01-01 → 2024-12-31 | ¥685m |
| Optical Communication Parts And Devices Businessreportable segment | depreciation | 2024-01-01 → 2024-12-31 | ¥362m |
| Optical Communication Parts And Devices Businessreportable segment | revenue | 2024-01-01 → 2024-12-31 | ¥7.5bn |
| Optical Communication Parts And Devices Businessreportable segment | revenue external | 2024-01-01 → 2024-12-31 | ¥7.5bn |
| Optical Communication Parts And Devices Businessreportable segment | segment assets | at 2024-12-31 | ¥5.5bn |
| Optical Communication Parts And Devices Businessreportable segment | segment profit | 2024-01-01 → 2024-12-31 | ¥3.5bn |
| Total Of Reportable Segments And Otherssegment total | capex | 2024-01-01 → 2024-12-31 | ¥1.0bn |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2024-01-01 → 2024-12-31 | ¥947m |
| Total Of Reportable Segments And Otherssegment total | revenue | 2024-01-01 → 2024-12-31 | ¥15.9bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2024-01-01 → 2024-12-31 | ¥15.9bn |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2024-12-31 | ¥14.1bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2024-01-01 → 2024-12-31 | ¥3.9bn |
| Lead Terminals Businessreportable segment | employees | at 2025-12-31 | 61 pure |
| Optical Communication Parts And Devices Businessreportable segment | employees | at 2025-12-31 | 64 pure |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 1,577
| Item | Context | Value | Unit |
|---|---|---|---|
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | 23000000 | JPY |
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | 17000000 | JPY |
| Disposal of treasury stock | CurrentYearDuration_NonConsolidatedMember | 17000000 | JPY |
| Retirement of treasury stock | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | 2254000000 | JPY |
| Retirement of treasury stock | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | － | JPY |
| Retirement of treasury stock | CurrentYearDuration_NonConsolidatedMember | － | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 84000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 84000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember | 84000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | -211000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | -1048000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 84000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 84000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember | -964000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_TreasuryStockMember | -213000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ShareholdersEquityMember | 19134000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 67000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 67000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember | 19202000000 | JPY |
| Payrolls and allowances sga | Prior1YearDuration_NonConsolidatedMember | 281000000 | JPY |
| Payrolls and allowances sga | CurrentYearDuration_NonConsolidatedMember | 395000000 | JPY |
| Provision for bonuses sga | Prior1YearDuration_NonConsolidatedMember | 50000000 | JPY |
| Provision for bonuses sga | CurrentYearDuration_NonConsolidatedMember | 51000000 | JPY |
| Provision for directors bonuses sga | Prior1YearDuration_NonConsolidatedMember | 33000000 | JPY |
| Provision for directors bonuses sga | CurrentYearDuration_NonConsolidatedMember | 34000000 | JPY |
| Retirement benefit expenses sga | Prior1YearDuration_NonConsolidatedMember | 6000000 | JPY |
| Retirement benefit expenses sga | CurrentYearDuration_NonConsolidatedMember | 15000000 | JPY |
| Depreciation sga | Prior1YearDuration_NonConsolidatedMember | 43000000 | JPY |
| Depreciation sga | CurrentYearDuration_NonConsolidatedMember | 50000000 | JPY |
| Commission fee | Prior1YearDuration_NonConsolidatedMember | 226000000 | JPY |
| Commission fee | CurrentYearDuration_NonConsolidatedMember | 226000000 | JPY |
| Research and development expenses sga | Prior1YearDuration_NonConsolidatedMember | 807000000 | JPY |
| Research and development expenses sga | CurrentYearDuration_NonConsolidatedMember | 641000000 | 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)近畿財務局長 | |
| Filing date cover page | FilingDateInstant | 2026-03-26 | |
| Fiscal year cover page | FilingDateInstant | Original text (Japanese)第67期(自 2025年１月１日 至 2025年12月31日) | |
| Company name cover page | FilingDateInstant | Original text (Japanese)湖北工業株式会社 | |
| Company name in english cover page | FilingDateInstant | KOHOKU KOGYO CO.,LTD. | |
| Title and name of representative cover page | FilingDateInstant | Original text (Japanese)代表取締役社長CEO 石井 太 | |
| Address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)滋賀県長浜市高月町高月1623番地 | |
| Telephone number address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)(0749)85-3211 (代表) | |
| Name of contact person address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)取締役CFO 中村 聖二 | |
| Nearest place of contact cover page | FilingDateInstant | Original text (Japanese)滋賀県長浜市高月町高月1623番地 | |
| Telephone number nearest place of contact cover page | FilingDateInstant | Original text (Japanese)(0749)85-3211 (代表) | |
| Name of contact person nearest place of contact cover page | FilingDateInstant | Original text (Japanese)取締役CFO 中村 聖二 | |
| Place for public inspection cover page (text) | FilingDateInstant | Text · Plus | |
| Edinet code | FilingDateInstant | E37156 | |
| Fund code | FilingDateInstant | － |
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 rounding |
| 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 |