v3.26.3
Shareholder Report
 12 Months Ended 35 Months Ended
Jul. 31, 2026
USD ($)
holding
Jul. 31, 2025
Jul. 31, 2026
USD ($)
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 Jul. 31, 2026    
Shareholder Report Annual or Semi-Annual annual shareholder report    
C000243188 [Member]      
Shareholder Report [Line Items]      
Fund Name Bushido Capital US Equity ETF    
Class Name Bushido Capital US Equity ETF    
Trading Symbol SMRI    
Security Exchange Name NASDAQ    
Annual or Semi-Annual Statement [Text Block]
This annual shareholder report contains important information about the Bushido Capital US Equity ETF (the “Fund”) for the period of August 1, 2025 to July 31, 2026 (the “Period”). You can find additional information about the Fund at https://bushidoetf.com/smri/. 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://bushidoetf.com/smri/. 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://bushidoetf.com/smri/    
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
$850.71%
    
Expenses Paid, Amount $ 85    
Expense Ratio, Percent 0.71%    
Factors Affecting Performance [Text Block]
WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD?
During the period, the Fund returned 38.76%, outperforming both the S&P 500 Value Index and Solactive GBS United States 1000 Index for fiscal year 2026. The performance reflects the Fund's disciplined, systematic investment process, anchored by valuation analysis, which kept the Fund invested in businesses whose prices we judged to be disconnected from their estimated intrinsic value. The resilience of the U.S. equity market, particularly from March through July 2026, provided the environment in which that discipline was rewarded, and the majority of the Fund's outperformance was generated in that period.
Top Contributors:
•Dell Technologies Inc., SanDisk Corp., Centene Corp., Valero Energy Corp., and Marathon Petroleum Corp. were among the top contributors to performance during the fiscal year.
•Stock selection in the Utilities, Materials, and Communication Services sectors, and overweight in the Energy and Information Technology sectors were the top contributors to performance during the fiscal year.
•Our investment process focuses on free cash flow generation, and our performance during the Period was helped by having exposure to specific businesses exhibiting increasing free cash flows (SanDisk, Dell, Valero & Marathon Petroleum) while being underweight the Mag 7 cohort which, collectively, have seen a degradation in their free cash flow generation.

Top Detractors:
•Cognizant Technology Solutions Corp., GoDaddy Inc., Gartner Inc., DocuSign Inc., and PayPal Holdings Inc. were among the top detractors from performance during the fiscal year.
•Stock selection in the Health Care, Energy, and Consumer Discretionary sectors, and overweight in the Consumer Discretionary sector were the top detractors from performance during the fiscal year. 		   
Line Graph [Table Text Block]
PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT
7 		   
Average Annual Return [Table Text Block]
PERFORMANCE
One Year
Since Inception (9/13/2023)
Bushido Capital US Equity ETF - NAV38.76%23.27%
Solactive GBS United States 1000 Index18.71%20.58%
S&P 500 Value Index19.71%15.77%
The Solactive GBS United States 1000 Index is provided as a broad measure of market performance. The S&P 500 Value Index is provided as a measure of the Fund’s investment strategy and universe.
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://bushidoetf.com/smri/ for more recent performance information.
    
Performance Inception Date     Sep. 13, 2023
Net Assets $ 645,206,149   $ 645,206,149
Holdings Count | holding 51   51
Advisory Fees Paid, Amount $ 3,664,174    
Investment Company, Portfolio Turnover 168.00%    
Additional Fund Statistics [Text Block]
 KEY FUND STATISTICS (as of Period End)
Net Assets$645,206,149Portfolio Turnover Rate*168%
# of Portfolio Holdings51Fund Advisory Fees Paid$3,664,174
*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)
Health Care26.3%
Energy22.6%
Information Technology22.5%
Consumer Discretionary9.7%
Industrials8.2%
Communication Services3.7%
Utilities3.5%
Materials3.4%


TOP 10 HOLDINGS
(as a % of Net Assets)
Tenet Healthcare Corp.2.6%
Workday, Inc. - Class A2.5%
Accenture PLC - Class A2.4%
Veeva Systems, Inc. - Class A2.3%
Valero Energy Corp.2.3%
Marathon Petroleum Corp.2.3%
Adobe, Inc.2.3%
Phillips 662.3%
Intuit, Inc.2.2%
Expedia Group, Inc.2.2%
    
C000259086 [Member]      
Shareholder Report [Line Items]      
Fund Name Bushido Capital US SMID Cap Equity ETF    
Class Name Bushido Capital US SMID Cap Equity ETF    
Trading Symbol RNIN    
Security Exchange Name NASDAQ    
Annual or Semi-Annual Statement [Text Block]
This annual shareholder report contains important information about the Bushido Capital US SMID Cap Equity ETF (the “Fund”) for the period of August 1, 2025 to July 31, 2026 (the “Period”). You can find additional information about the Fund at https://bushidoetf.com/rnin/. 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://bushidoetf.com/rnin/. 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://bushidoetf.com/rnin/    
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
$800.67%
    
Expenses Paid, Amount $ 80    
Expense Ratio, Percent 0.67%    
Factors Affecting Performance [Text Block]
WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD?
During the Period, the Fund returned 39.07%, outperforming the Solactive GFS United States 2500 Value Style MV Index and Solactive GBS United States 1000 Index in the fiscal year 2026. The performance reflects the Fund's disciplined, systematic investment process, anchored by valuation analysis, which kept the Fund invested in businesses whose prices we judged to be disconnected from their
estimated intrinsic value. The resilience of the U.S. equity market, particularly from March through July 2026, provided the environment in which that discipline was rewarded, and the majority of the Fund's outperformance was generated in that period.

Top Contributors:
•Oscar Health Inc., Par Pacific Holdings Inc., SM Energy Co., APA Corp., and RingCentral Inc. were among the top contributors to performance during the fiscal year.
•Overweight in the Energy and Information Technology sectors, and stock selection in the Consumer Discretionary, Energy, and Materials sectors were the top contributors to performance during the fiscal year.

Top Detractors:
•ZoomInfo Technologies Inc., StubHub Holdings Inc., Concentrix Corp., HP Inc., and Molina Healthcare Inc. were among the top detractors from performance during the fiscal year.
•Stock selection in the Industrials, Health Care, and Communication Services sectors, and overweight in Consumer Discretionary and Communication Services sectors were the top detractors from performance during the fiscal year.
    
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]
PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT
7
    
Average Annual Return [Table Text Block]
PERFORMANCE
One Year
Since Inception (5/14/2025)
Bushido Capital US SMID Cap Equity ETF - NAV
39.07%35.63%
Solactive GBS United States 1000 Index
18.71%22.53%
Solactive GFS United States 2500 Value Style MV Index
31.17%29.24%
The Solactive GBS United States 1000 Index is provided as a broad measure of market performance. The Solactive GFS United States 2500 Value Style MV Index is provided as a measure of the Fund’s investment strategy and universe.
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://bushidoetf.com/rnin/ for more recent performance information.
    
Performance Inception Date   May 14, 2025  
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.  
Net Assets $ 182,414,981   $ 182,414,981
Holdings Count | holding 82   82
Advisory Fees Paid, Amount $ 915,012    
Investment Company, Portfolio Turnover 181.00%    
Additional Fund Statistics [Text Block]
 KEY FUND STATISTICS (as of Period End)
Net Assets$182,414,981Portfolio Turnover Rate*181%
# of Portfolio Holdings82Fund Advisory Fees Paid$915,012
*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 Technology26.0%
Consumer Discretionary18.0%
Energy15.0%
Health Care11.6%
Communication Services10.2%
Industrials9.8%
Consumer Staples5.7%
Financials 2.4%
Materials1.1%

TOP 10 HOLDINGS
(as a % of Net Assets)
Par Pacific Holdings, Inc.1.9%
RingCentral, Inc. - Class A1.7%
Blackbaud, Inc.1.7%
BILL Holdings, Inc.1.5%
EPAM Systems, Inc.1.5%
HubSpot, Inc.1.5%
GigaCloud Technology, Inc. - Class A1.5%
Workday, Inc. - Class A1.4%
Sprinklr, Inc. Class A1.4%
Globant SA1.4%