v3.26.1
Shareholder Report
 6 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
holding
Mar. 31, 2026
USD ($)
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   Mar. 31, 2026
Shareholder Report Annual or Semi-Annual   annual shareholder report
C000241248 [Member]    
Shareholder Report [Line Items]    
Fund Name   Euclidean Fundamental Value ETF
Class Name   Euclidean Fundamental Value ETF
Trading Symbol   ECML
Security Exchange Name   NYSEArca
Annual or Semi-Annual Statement [Text Block]  
This annual shareholder report contains important information about the Euclidean Fundamental Value ETF (the “Fund”) for the period of April 1, 2025 to March 31, 2026 (the “Period”). You can find additional information about the Fund at https://euclideanetf.com. You can also request this information by contacting us at (215) 330-4476.
Additional Information [Text Block]  
Availability of Additional Information
For additional information about the Fund, including its prospectus, financial information, holdings, and proxy information, visit https://euclideanetf.com. You can also request information by calling (215) 330-4476.
Householding
Householding is an option available to certain investors of the Fund. Householding is a method of delivery, based on the preference of the individual investor, in which a single copy of certain shareholder documents can be delivered to investors who share the same address, even if their accounts are registered under different names. Householding for the Fund is available through certain broker-dealers. If you are interested in enrolling in householding and receiving a single copy of prospectuses and other shareholder documents or you are currently enrolled in householding and wish to change your householding status, please contact your broker-dealer.
Additional Information Phone Number   (215) 330-4476
Additional Information Website   https://euclideanetf.com
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE PERIOD?
(based on a hypothetical $10,000 investment)
COST OF $10,000 INVESTMENTCOST PAID AS A PERCENTAGE OF $10,000 INVESTMENT
$1050.95%
  
Expenses Paid, Amount   $ 105
Expense Ratio, Percent   0.95%
Factors Affecting Performance [Text Block]  
WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD?
For the Period, the Fund outperformed its broad-based benchmark, the S&P 500 Index, primarily due to sector allocation and security selection.

During the Period, the Fund had meaningful exposure to companies in the Materials and Energy sectors. Holdings in these sectors benefited from firmer commodity prices and improving demand conditions over the course of the Period and contributed positively to the Fund's returns.

The Fund continued to have little exposure to the largest-capitalization names in the Information Technology and Communication Services sectors that drove meaningful portion of the S&P 500 Index's returns in the prior fiscal year. During the Period, the relative contribution of these mega-capitalization names to the S&P 500 Index's return moderated performance.
During the Period, the Fund continued to execute its strategy of systematically investing, based on its quantitative models, in companies believed to be of high-quality and attractively valued. This approach can result in higher differentiation from the benchmark and may lead to performance differences from the benchmark.
Performance Past Does Not Indicate Future [Text]   The Fund’s past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]  
6
Average Annual Return [Table Text Block]  
PERFORMANCE
One Year
Since Inception (5/17/2023)
Euclidean Fundamental Value ETF - NAV20.38%15.17%
S&P 500 Index17.80%18.61%
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 https://euclideanetf.com for more recent performance information.
Performance Inception Date   May 17, 2023
No Deduction of Taxes [Text Block]   The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]   Visit https://euclideanetf.com for more recent performance information.
Net Assets $ 149,243,652 $ 149,243,652
Holdings Count | holding 63 63
Advisory Fees Paid, Amount   $ 1,318,975
Investment Company, Portfolio Turnover   60.00%
Additional Fund Statistics [Text Block]  
 KEY FUND STATISTICS (as of Period End)
Net Assets$149,243,652Portfolio Turnover Rate*60%
# of Portfolio Holdings63Advisory Fees Paid$1,318,975
*Portfolio turnover is not annualized and is calculated without regard to short-term securities having a maturity of less than one year. Excludes impact of in-kind transactions.
Holdings [Text Block]  
SECTOR WEIGHTING
(as a % of Net Assets)
Consumer Discretionary26.6%
Energy16.7%
Industrials16.2%
Materials11.9%
Health Care11.3%
Consumer Staples7.7%
Communication Services3.4%
Information Technology2.5%
Utilities1.4%
Cash and Cash Equivalents2.3%

TOP 10 HOLDINGS
(as a % of Net Assets)
Alcoa Corp. 3.2%
Mueller Industries, Inc. 2.5%
Photronics, Inc. 2.5%
Newmont Corp. 2.5%
APA Corp. 2.5%
CF Industries Holdings, Inc. 2.4%
Perdoceo Education Corp. 2.4%
Oshkosh Corp. 2.2%
Laureate Education, Inc. 2.2%
Allison Transmission Holdings, Inc. 2.2%