v3.26.3
Shareholder Report
 6 Months Ended
Jul. 31, 2026
USD ($)
Jan. 31, 2026
USD ($)
holding
Shareholder Report [Line Items]    
Document Type N-CSRS  
Amendment Flag false  
Registrant Name EA Series Trust  
Entity Central Index Key 0001592900  
Entity Investment Company Type N-1A  
Document Period End Date Jul. 31, 2026  
Shareholder Report Annual or Semi-Annual semi-annual shareholder report  
C000270326 [Member]    
Shareholder Report [Line Items]    
Fund Name Sapient Quality Select ETF  
Class Name Sapient Quality Select ETF  
Trading Symbol SQS  
Security Exchange Name NASDAQ  
Annual or Semi-Annual Statement [Text Block]
This semi-annual shareholder report contains important information about the Sapient Quality Select ETF (the “Fund”) for the period of March 13, 2026 to July 31, 2026 (the “Period”). You can find additional information about the Fund at https://sapientqualityselect.com/. You can also request this information by contacting us at (215) 330-4476. For information regarding your Fund shares or account, including account balances, transactions, or distributions, please contact your financial intermediary.
  
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://sapientqualityselect.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://sapientqualityselect.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
$320.80%
  
Expenses Paid, Amount $ 32  
Expense Ratio, Percent 0.80%  
Net Assets   $ 1,373,138,101
Holdings Count | holding   36
Advisory Fees Paid, Amount $ 4,086,717  
Investment Company, Portfolio Turnover 21.00%  
Additional Fund Statistics [Text Block]
 KEY FUND STATISTICS (as of Period End)
Net Assets$1,373,138,101Fund Advisory Fees$4,086,717
# of Portfolio Holdings36Portfolio Turnover Rate*21%
*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]

INVESTMENT WEIGHTING
(as a % of Net Assets)
Information Technology38.4%
Communication Services13.3%
Consumer Discretionary11.2%
Financials10.7%
Health Care8.6%
Industrials7.7%
Utilities4.2%
Energy3.1%
Consumer Staples1.8%


TOP 10 HOLDINGS
(as a % of Net Assets)
NVIDIA Corp. 9.0%
Alphabet, Inc. - Class A 7.9%
Apple, Inc. 7.8%
Amazon.com, Inc.5.9%
Eli Lilly & Co. 4.9%
Broadcom, Inc. 4.3%
Vistra Corp. 4.3%
Micron Technology, Inc. 3.5%
JPMorgan Chase & Co. 3.4%
Palo Alto Networks, Inc. 3.3%