| Shareholder Report | 12 Months Ended |
| May 31, 2024 USD ($) holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | EA Series Trust |
| Entity Central Index Key | 0001592900 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| C000228450 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Sparkline Intangible Value ETF |
| Class Name | Sparkline Intangible Value ETF |
| Trading Symbol | ITAN |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Sparkline Intangible Value ETF (the “Fund”) for the period of June 1, 2023 to May 31, 2024 (the “Period). |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information Phone Number | (215) 882-9983 |
| Additional Information Website | etf.sparklinecapital.com |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PERIOD? (based on a hypothetical $10,000 investment) COST OF $10,000 INVESTMENT COST PAID AS A PERCENTAGE OF $10,000 INVESTMENT $56 0.50% |
| Expenses Paid, Amount | $ 56 |
| Expense Ratio, Percent | 0.50% |
| Factors Affecting Performance [Text Block] | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? During the Period, the Fund returned 24.37% (on a NAV basis). From a high level, this exceptional performance was the result of favorable macroeconomic factors, such as a robust economy, moderating inflation, and healthy corporate profits. The Fund also benefited from rising interest in AI-related investments, given its heavy exposure to firms with innovative intangible assets. In addition, the Fund’s allocation to companies with strong human capital and brand equity contributed meaningfully to returns. Despite strong absolute performance, the Fund lagged the broader U.S. stock market index over this Period. This underperformance mostly occurred in the final month of the fiscal year, during which U.S. mega-cap tech stocks (e.g., the so-called “Magnificent 7”) surged. Due to its flatter market-cap weighting scheme, the Fund is less concentrated in mega-cap stocks than the market index. While this may lead to underperformance in periods of mega-cap dominance, we believe that diversification will prove beneficial over the long run. |
| Line Graph [Table Text Block] | PERFORMANCE OF HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS One Year Since Inception (6/28/2021) Sparkline Intangible Value ETF - NAV 24.37% 4.76% Sparkline Intangible Value ETF - Market 24.02% 4.72% Solactive GBS United States 1000 Index 27.55% 7.15% The Fund’s past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. Visit etf.sparklinecapital.com for more recent performance information. |
| Performance Inception Date | Jun. 28, 2021 |
| Net Assets | $ 35,493,918 |
| Holdings Count | holding | 152 |
| Advisory Fees Paid, Amount | $ 152,316 |
| Investment Company, Portfolio Turnover | 35% |
| Holdings [Text Block] | SECTOR WEIGHTING Information Technology 28.8% (1) Industrials 17.8% Communication Services 17.3% Consumer Discretionary 12.0% Health Care 11.7% Financials 6.4% Consumer Staples 2.6% Materials 1.6% Energy 0.7% Real Estate 0.7% Money Market Funds 0.3% Other Assets in Excess of Liabilities (2) 0.1% Total 100.0% (1) For purposes of the Fund’s compliance with its concentration limits, the Fund uses various sub-classifications and none of the Fund’s holdings in the sub-classifications exceed 25% of the Fund’s total assets. (2) Cash, cash equivalents and other assets in excess of liabilities. ASSET WEIGHTING (as a % of Net Assets) |
