| 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 |
| C000236406 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | AOT Growth and Innovation ETF |
| Class Name | AOT Growth and Innovation ETF |
| Trading Symbol | AOTG |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AOT Growth and Innovation 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 | www.aotetf.com |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE YEAR? COST OF $10,000 INVESTMENT COST PAID AS A PERCENTAGE OF $10,000 INVESTMENT $85 0.75% |
| Expenses Paid, Amount | $ 85 |
| Expense Ratio, Percent | 0.75% |
| Factors Affecting Performance [Text Block] | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? For the Period, the Fund gained 25.80% NAV. Over the same Period, the S&P 500 Index gained 28.19%, and the Solactive GBS United States 1000 Index gained 27.55%. The Fund underperformed its benchmark indexes over the Period mainly due to its greater concentration in mid-cap and small-cap companies (as compared to the Fund’s benchmarks), which appreciated less than large-cap companies. The Fund’s holdings in the Semiconductor and Technology sectors provided the Fund with significant appreciation over the Period. Each of the Financial Services, Consumer Discretionary, and Communication Services sectors experienced appreciation over the Period and contributed to the Fund’s positive performance. Since inception on June 28, 2022 through May 31, 2024, the Fund outperformed its benchmarks with 22.80% annualized performance, versus 20.21% annualized performance in the S&P 500 Index and 19.33% annualized performance in the Solactive GBS United States 1000 Index. |
| 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 (6/28/2022) AOT Growth and Innovation ETF - NAV 25.80% 22.80% AOT Growth and Innovation ETF - Market 25.62% 22.77% Solactive GBS United States 1000 Index 27.55% 19.33% S&P 500 Index* 28.19% 20.21% *The Fund has changed its benchmark to the Solactive GBS United States 1000 Index, which represents the overall domestic equity market in which the Fund invests. 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 aotetf.com for more recent performance information. |
| Performance Inception Date | Jun. 28, 2022 |
| Net Assets | $ 35,997,018 |
| Holdings Count | holding | 56 |
| Advisory Fees Paid, Amount | $ 221,325 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | SECTOR WEIGHTING Information Technology 51.5 % (1) Financials 20.6 % Communication Services 12.9 % Consumer Discretionary 9.3 % Industrials 4.2 % Health Care 1.1 % Real Estate 0.2 % Money Market Funds 0.2 % Liabilities in Excess of Other Assets (2) (0.0%) (3) 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 liabilities in excess of other assets. (3) Represents less than 0.05% of Net Assets. ASSET WEIGHTING |
