Annual report
3678.TEDINET S100Y71R
Period2025-03-01 → 2026-02-28
Filed2026-05-28
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 151
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥108.5bn | 2025-03-01 → 2026-02-28 | Cons. | Net sales |
| Revenue | ¥101.9bn | 2024-03-01 → 2025-02-28 | Cons. | Net sales |
| Revenue | ¥94.0bn | 2023-03-01 → 2024-02-29v | Cons. | Net sales (5-year summary) |
| Revenue | ¥101.7bn | 2022-03-01 → 2023-02-28v | Cons. | Net sales (5-year summary) |
| Revenue | ¥104.7bn | 2021-03-01 → 2022-02-28d | Cons. | Net sales (5-year summary) |
| Operating income | ¥2.5bn | 2025-03-01 → 2026-02-28 | Cons. | Operating income |
| Operating income | ¥2.5bn | 2024-03-01 → 2025-02-28 | Cons. | Operating income |
| Ordinary income | ¥2.5bn | 2025-03-01 → 2026-02-28 | Cons. | Ordinary income |
| Ordinary income | ¥2.4bn | 2024-03-01 → 2025-02-28 | Cons. | Ordinary income |
| Ordinary income | ¥2.0bn | 2023-03-01 → 2024-02-29v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥2.3bn | 2022-03-01 → 2023-02-28v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥2.8bn | 2021-03-01 → 2022-02-28d | Cons. | Ordinary income loss (5-year summary) |
| Profit before tax | ¥2.5bn | 2025-03-01 → 2026-02-28 | Cons. | Income before income taxes |
| Profit before tax | ¥1.9bn | 2024-03-01 → 2025-02-28 | Cons. | Income before income taxes |
| Net income (owners) | ¥1.8bn | 2025-03-01 → 2026-02-28 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥1.4bn | 2024-03-01 → 2025-02-28 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | −¥319m | 2023-03-01 → 2024-02-29v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥1.1bn | 2022-03-01 → 2023-02-28v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥1.6bn | 2021-03-01 → 2022-02-28d | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income | ¥1.8bn | 2025-03-01 → 2026-02-28 | Cons. | Profit loss |
| Net income | ¥1.4bn | 2024-03-01 → 2025-02-28 | Cons. | Profit loss |
| Total assets | ¥56.9bn | at 2026-02-28 | Cons. | Assets |
| Total assets | ¥53.2bn | at 2025-02-28 | Cons. | Assets |
| Total assets | ¥51.6bn | at 2024-02-29v | Cons. | Total assets (5-year summary) |
| Total assets | ¥50.9bn | at 2023-02-28v | Cons. | Total assets (5-year summary) |
| Total assets | ¥52.5bn | at 2022-02-28d | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥37.7bn | at 2026-02-28 | Cons. | Liabilities |
| Total liabilities | ¥35.5bn | at 2025-02-28 | Cons. | Liabilities |
| Net assets / equity | ¥19.2bn | at 2026-02-28 | Cons. | Net assets |
| Net assets / equity | ¥17.7bn | at 2025-02-28 | Cons. | Net assets |
| Net assets / equity | ¥16.2bn | at 2024-02-29v | Cons. | Net assets |
| Net assets / equity | ¥16.8bn | at 2023-02-28v | Cons. | Net assets (5-year summary) |
| Net assets / equity | ¥16.9bn | at 2022-02-28d | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥14.0bn | at 2026-02-28 | Cons. | Cash and deposits |
| Cash and deposits | ¥13.6bn | at 2025-02-28 | Cons. | Cash and deposits |
| Cash & equivalents | ¥14.0bn | at 2026-02-28 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥13.6bn | at 2025-02-28 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥11.0bn | at 2024-02-29v | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥10.1bn | at 2023-02-28v | Cons. | Cash and cash equivalents (5-year summary) |
| Cash & equivalents | ¥11.4bn | at 2022-02-28d | Cons. | Cash and cash equivalents (5-year summary) |
| Operating cash flow | ¥2.5bn | 2025-03-01 → 2026-02-28 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥3.9bn | 2024-03-01 → 2025-02-28 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥3.2bn | 2023-03-01 → 2024-02-29v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥1.9bn | 2022-03-01 → 2023-02-28v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥4.6bn | 2021-03-01 → 2022-02-28d | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Investing cash flow | −¥426m | 2025-03-01 → 2026-02-28 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | ¥137m | 2024-03-01 → 2025-02-28 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥688m | 2023-03-01 → 2024-02-29v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥3.1bn | 2022-03-01 → 2023-02-28v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥7.8bn | 2021-03-01 → 2022-02-28d | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Financing cash flow | −¥1.6bn | 2025-03-01 → 2026-02-28 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥1.5bn | 2024-03-01 → 2025-02-28 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥1.6bn | 2023-03-01 → 2024-02-29v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥276m | 2022-03-01 → 2023-02-28v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | ¥2.1bn | 2021-03-01 → 2022-02-28d | Cons. | Net cash provided by used in financing activities (5-year summary) |
| EPS (basic) | ¥119.85 | 2025-03-01 → 2026-02-28 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥90.08 | 2024-03-01 → 2025-02-28 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-21.08 | 2023-03-01 → 2024-02-29v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥68.35 | 2022-03-01 → 2023-02-28v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥99.75 | 2021-03-01 → 2022-02-28d | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥68.35 | 2022-03-01 → 2023-02-28v | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥99.68 | 2021-03-01 → 2022-02-28d | Cons. | Diluted earnings per share (5-year summary) |
| Net assets per share | ¥1,253.99 | at 2026-02-28 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,161.59 | at 2025-02-28 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,070.86 | at 2024-02-29v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,082.72 | at 2023-02-28v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥1,059.59 | at 2022-02-28d | Cons. | Net assets per share (5-year summary) |
| Equity ratio | 33.4% | at 2026-02-28 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 33.1% | at 2025-02-28 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 31.4% | at 2024-02-29v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 32.8% | at 2023-02-28v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 32.0% | at 2022-02-28d | Cons. | Equity to asset ratio (5-year summary) |
| ROE | 9.9% | 2025-03-01 → 2026-02-28 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 8.1% | 2024-03-01 → 2025-02-28 | Cons. | Rate of return on equity (5-year summary) |
| ROE | -1.9% | 2023-03-01 → 2024-02-29v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 6.3% | 2022-03-01 → 2023-02-28v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 10.9% | 2021-03-01 → 2022-02-28d | Cons. | Rate of return on equity (5-year summary) |
| Employees | 507 | at 2026-02-28 | Cons. | Number of employees |
| Employees | 558 | at 2025-02-28 | Cons. | Number of employees |
| Employees | 606 | at 2024-02-29v | Cons. | Number of employees |
| Employees | 610 | at 2023-02-28v | Cons. | Number of employees |
| Employees | 580 | at 2022-02-28d | Cons. | Number of employees |
| Revenue | ¥102.0bn | 2025-03-01 → 2026-02-28 | Standalone | Net sales |
| Revenue | ¥94.9bn | 2024-03-01 → 2025-02-28 | Standalone | Net sales |
| Revenue | ¥87.6bn | 2023-03-01 → 2024-02-29v | Standalone | Net sales (5-year summary) |
| Revenue | ¥95.2bn | 2022-03-01 → 2023-02-28v | Standalone | Net sales (5-year summary) |
| Revenue | ¥99.0bn | 2021-03-01 → 2022-02-28d | Standalone | Net sales (5-year summary) |
| Operating income | ¥2.8bn | 2025-03-01 → 2026-02-28 | Standalone | Operating income |
| Operating income | ¥3.1bn | 2024-03-01 → 2025-02-28 | Standalone | Operating income |
| Ordinary income | ¥2.9bn | 2025-03-01 → 2026-02-28 | Standalone | Ordinary income |
| Ordinary income | ¥3.3bn | 2024-03-01 → 2025-02-28 | Standalone | Ordinary income |
| Ordinary income | ¥2.9bn | 2023-03-01 → 2024-02-29v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥3.0bn | 2022-03-01 → 2023-02-28v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥3.4bn | 2021-03-01 → 2022-02-28d | Standalone | Ordinary income loss (5-year summary) |
| Profit before tax | ¥1.9bn | 2025-03-01 → 2026-02-28 | Standalone | Income before income taxes |
| Profit before tax | ¥2.3bn | 2024-03-01 → 2025-02-28 | Standalone | Income before income taxes |
| Net income | ¥1.3bn | 2025-03-01 → 2026-02-28 | Standalone | Profit loss |
| Net income | ¥1.9bn | 2024-03-01 → 2025-02-28 | Standalone | Profit loss |
| Net income | ¥618m | 2023-03-01 → 2024-02-29v | Standalone | Net income loss (5-year summary) |
| Net income | ¥1.3bn | 2022-03-01 → 2023-02-28v | Standalone | Net income loss (5-year summary) |
| Net income | ¥1.5bn | 2021-03-01 → 2022-02-28d | Standalone | Net income loss (5-year summary) |
| Total assets | ¥54.3bn | at 2026-02-28 | Standalone | Assets |
| Total assets | ¥51.7bn | at 2025-02-28 | Standalone | Assets |
| Total assets | ¥50.0bn | at 2024-02-29v | Standalone | Total assets (5-year summary) |
| Total assets | ¥48.7bn | at 2023-02-28v | Standalone | Total assets (5-year summary) |
| Total assets | ¥50.2bn | at 2022-02-28d | Standalone | Total assets (5-year summary) |
| Total liabilities | ¥34.8bn | at 2026-02-28 | Standalone | Liabilities |
| Total liabilities | ¥33.2bn | at 2025-02-28 | Standalone | Liabilities |
| Net assets / equity | ¥19.4bn | at 2026-02-28 | Standalone | Net assets |
| Net assets / equity | ¥18.5bn | at 2025-02-28 | Standalone | Net assets |
| Net assets / equity | ¥17.0bn | at 2024-02-29v | Standalone | Net assets |
| Net assets / equity | ¥16.7bn | at 2023-02-28v | Standalone | Net assets (5-year summary) |
| Net assets / equity | ¥16.8bn | at 2022-02-28d | Standalone | Net assets (5-year summary) |
| Cash and deposits | ¥12.6bn | at 2026-02-28 | Standalone | Cash and deposits |
| Cash and deposits | ¥11.7bn | at 2025-02-28 | Standalone | Cash and deposits |
| EPS (basic) | ¥85.55 | 2025-03-01 → 2026-02-28 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥126.27 | 2024-03-01 → 2025-02-28 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥40.76 | 2023-03-01 → 2024-02-29v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥86.87 | 2022-03-01 → 2023-02-28v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥93.22 | 2021-03-01 → 2022-02-28d | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥86.87 | 2022-03-01 → 2023-02-28v | Standalone | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥93.16 | 2021-03-01 → 2022-02-28d | Standalone | Diluted earnings per share (5-year summary) |
| Dividend per share | ¥40 | 2025-03-01 → 2026-02-28 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥36 | 2024-03-01 → 2025-02-28 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥22 | 2023-03-01 → 2024-02-29v | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥21 | 2021-03-01 → 2022-02-28d | Standalone | Dividend paid per share (5-year summary) |
| Net assets per share | ¥1,278.24 | at 2026-02-28 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,222.12 | at 2025-02-28 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,120.55 | at 2024-02-29v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,083.84 | at 2023-02-28v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥1,057.54 | at 2022-02-28d | Standalone | Net assets per share (5-year summary) |
| Equity ratio | 35.8% | at 2026-02-28 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 35.8% | at 2025-02-28 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 33.9% | at 2024-02-29v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 34.3% | at 2023-02-28v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 33.4% | at 2022-02-28d | Standalone | Equity to asset ratio (5-year summary) |
| ROE | 6.8% | 2025-03-01 → 2026-02-28 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 10.8% | 2024-03-01 → 2025-02-28 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 3.7% | 2023-03-01 → 2024-02-29v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 8.0% | 2022-03-01 → 2023-02-28v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 10.0% | 2021-03-01 → 2022-02-28d | Standalone | Rate of return on equity (5-year summary) |
| Shares issued | 15,205,174 | at 2026-02-28 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 15,172,972 | at 2025-02-28 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 15,130,911 | at 2024-02-29v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 15,437,820 | at 2023-02-28v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 15,872,451 | at 2022-02-28d | Standalone | Total number of issued shares (5-year summary) |
| Employees | 253 | at 2026-02-28 | Standalone | Number of employees |
| Employees | 272 | at 2025-02-28 | Standalone | Number of employees |
| Employees | 316 | at 2024-02-29v | Standalone | Number of employees |
| Employees | 320 | at 2023-02-28v | Standalone | Number of employees |
| Employees | 308 | at 2022-02-28d | 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 | depreciation | 2025-03-01 → 2026-02-28 | ¥24m |
| Reconciling Itemsreconciling | revenue | 2025-03-01 → 2026-02-28 | −¥1.3bn |
| Reconciling Itemsreconciling | revenue external | 2025-03-01 → 2026-02-28 | ¥19m |
| Reconciling Itemsreconciling | revenue intersegment | 2025-03-01 → 2026-02-28 | −¥1.3bn |
| Reconciling Itemsreconciling | segment profit | 2025-03-01 → 2026-02-28 | −¥1.8bn |
| E Book Distribution Businessreportable segment | depreciation | 2025-03-01 → 2026-02-28 | ¥240m |
| E Book Distribution Businessreportable segment | employees | at 2026-02-28 | 163 pure |
| E Book Distribution Businessreportable segment | revenue | 2025-03-01 → 2026-02-28 | ¥101.1bn |
| E Book Distribution Businessreportable segment | revenue external | 2025-03-01 → 2026-02-28 | ¥101.1bn |
| E Book Distribution Businessreportable segment | revenue intersegment | 2025-03-01 → 2026-02-28 | ¥44m |
| E Book Distribution Businessreportable segment | segment profit | 2025-03-01 → 2026-02-28 | ¥4.9bn |
| Strategic Investmentreportable segment | depreciation | 2025-03-01 → 2026-02-28 | ¥485m |
| Strategic Investmentreportable segment | employees | at 2026-02-28 | 258 pure |
| Strategic Investmentreportable segment | revenue | 2025-03-01 → 2026-02-28 | ¥8.7bn |
| Strategic Investmentreportable segment | revenue external | 2025-03-01 → 2026-02-28 | ¥7.5bn |
| Strategic Investmentreportable segment | revenue intersegment | 2025-03-01 → 2026-02-28 | ¥1.3bn |
| Strategic Investmentreportable segment | segment profit | 2025-03-01 → 2026-02-28 | −¥631m |
| —segment total | depreciation | 2025-03-01 → 2026-02-28 | ¥725m |
| —segment total | revenue | 2025-03-01 → 2026-02-28 | ¥109.8bn |
| —segment total | revenue external | 2025-03-01 → 2026-02-28 | ¥108.5bn |
| —segment total | revenue intersegment | 2025-03-01 → 2026-02-28 | ¥1.3bn |
| —segment total | segment profit | 2025-03-01 → 2026-02-28 | ¥4.3bn |
| Reconciling Itemsreconciling | depreciation | 2024-03-01 → 2025-02-28 | ¥23m |
| Reconciling Itemsreconciling | revenue | 2024-03-01 → 2025-02-28 | −¥1.3bn |
| Reconciling Itemsreconciling | revenue external | 2024-03-01 → 2025-02-28 | ¥15m |
| Reconciling Itemsreconciling | revenue intersegment | 2024-03-01 → 2025-02-28 | −¥1.3bn |
| Reconciling Itemsreconciling | segment profit | 2024-03-01 → 2025-02-28 | −¥1.6bn |
| E Book Distribution Businessreportable segment | depreciation | 2024-03-01 → 2025-02-28 | ¥294m |
| E Book Distribution Businessreportable segment | revenue | 2024-03-01 → 2025-02-28 | ¥93.8bn |
| E Book Distribution Businessreportable segment | revenue external | 2024-03-01 → 2025-02-28 | ¥93.8bn |
| E Book Distribution Businessreportable segment | revenue intersegment | 2024-03-01 → 2025-02-28 | ¥51m |
| E Book Distribution Businessreportable segment | segment profit | 2024-03-01 → 2025-02-28 | ¥5.0bn |
| Strategic Investmentreportable segment | depreciation | 2024-03-01 → 2025-02-28 | ¥340m |
| Strategic Investmentreportable segment | revenue | 2024-03-01 → 2025-02-28 | ¥9.4bn |
| Strategic Investmentreportable segment | revenue external | 2024-03-01 → 2025-02-28 | ¥8.1bn |
| Strategic Investmentreportable segment | revenue intersegment | 2024-03-01 → 2025-02-28 | ¥1.3bn |
| Strategic Investmentreportable segment | segment profit | 2024-03-01 → 2025-02-28 | −¥953m |
| —segment total | depreciation | 2024-03-01 → 2025-02-28 | ¥634m |
| —segment total | revenue | 2024-03-01 → 2025-02-28 | ¥103.2bn |
| —segment total | revenue external | 2024-03-01 → 2025-02-28 | ¥101.9bn |
| —segment total | revenue intersegment | 2024-03-01 → 2025-02-28 | ¥1.3bn |
| —segment total | segment profit | 2024-03-01 → 2025-02-28 | ¥4.0bn |
| E Book Distribution Businessreportable segment | employees | at 2026-02-28 | 141 pure |
| Strategic Investmentreportable segment | employees | at 2026-02-28 | 35 pure |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 1,471
| Item | Context | Value | Unit |
|---|---|---|---|
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_RetainedEarningsMember | － | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | － | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 75000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 75000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember_SubscriptionRightsToSharesMember | 17000000 | JPY |
| Net changes of items other than shareholders equity | CurrentYearDuration_NonConsolidatedMember | 93000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_CapitalStockMember | 28000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_LegalCapitalSurplusMember | 28000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_OtherCapitalSurplusMember | － | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_CapitalSurplusMember | 28000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_RetainedEarningsBroughtForwardMember | 753000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_RetainedEarningsMember | 753000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_TreasuryStockMember | － | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ShareholdersEquityMember | 811000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 75000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 75000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember_SubscriptionRightsToSharesMember | 17000000 | JPY |
| Total changes of items during the period | CurrentYearDuration_NonConsolidatedMember | 904000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_CapitalStockMember | 6019000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_LegalCapitalSurplusMember | 5722000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_OtherCapitalSurplusMember | 1552000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_CapitalSurplusMember | 7274000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_RetainedEarningsBroughtForwardMember | 5964000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_RetainedEarningsMember | 5964000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_TreasuryStockMember | -0 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ShareholdersEquityMember | 19258000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationDifferenceOnAvailableForSaleSecuritiesMember | 167000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_ValuationAndTranslationAdjustmentsMember | 167000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember_SubscriptionRightsToSharesMember | 17000000 | JPY |
| Net assets | CurrentYearInstant_NonConsolidatedMember | 19443000000 | JPY |
| Salaries and allowances sga | Prior1YearDuration_NonConsolidatedMember | 1518000000 | JPY |
| Salaries and allowances sga | CurrentYearDuration_NonConsolidatedMember | 1324000000 | JPY |
| Directors compensations sga | Prior1YearDuration_NonConsolidatedMember | 192000000 | JPY |
| Directors compensations sga | CurrentYearDuration_NonConsolidatedMember | 196000000 | JPY |
| Commission fee sga | Prior1YearDuration_NonConsolidatedMember | 898000000 | JPY |
| Commission fee sga | CurrentYearDuration_NonConsolidatedMember | 911000000 | JPY |
| Depreciation sga | Prior1YearDuration_NonConsolidatedMember | 155000000 | JPY |
| Depreciation sga | CurrentYearDuration_NonConsolidatedMember | 106000000 | JPY |
| Amortization of goodwill sga | Prior1YearDuration_NonConsolidatedMember | 253000000 | JPY |
| Amortization of goodwill sga | CurrentYearDuration_NonConsolidatedMember | 253000000 | 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 | 2026-05-28 | |
| Fiscal year cover page | FilingDateInstant | Original text (Japanese)第27期（自 2025年３月１日 至 2026年２月28日） | |
| Company name cover page | FilingDateInstant | Original text (Japanese)株式会社メディアドゥ | |
| Company name in english cover page | FilingDateInstant | MEDIA DO Co., Ltd. | |
| Title and name of representative cover page | FilingDateInstant | Original text (Japanese)代表取締役社長 CEO 藤田 恭嗣 | |
| Address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)東京都千代田区一ツ橋一丁目１番１号 | |
| Telephone number address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)（03）6212-5111（代表） |
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 rounding |
| balance sheet identity | pass rounding |
| 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 |