| Form N-CSR Cover | 6 Months Ended |
| Sep. 30, 2024 | |
| 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 | Sep. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Sep. 30, 2024 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 | Sep. 30, 2024 |
| C000241955 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Dempsey Large Cap Value ETF |
| Class Name | Morgan Dempsey Large Cap Value ETF |
| Trading Symbol | MDLV |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the StockSnips AI-Powered Sentiment US All Cap ETF (the “Fund”) for the period of April 11, 2024 to July 31, 2024 (the “Period”). |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information Phone Number | (215) 330-4476 |
| Additional Information Website | www.morgandempseyfunds.com |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PERIOD? COST OF $10,000 INVESTMENT COST PAID AS A PERCENTAGE OF $10,000 INVESTMENT $30 0.58% |
| Expenses Paid, Amount | $ 30 |
| Expense Ratio, Percent | 0.58% |
| Net Assets | $ 15,866,197 |
| Holdings Count | holding | 37 |
| Advisory Fees Paid, Amount | $ 34,663 |
| Investment Company, Portfolio Turnover | 15% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of Period End) Net Assets $15,866,197 Advisory Fees $34,663 # of Portfolio Holdings 37 Portfolio Turnover Rate* 15% *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 Consumer Staples 14.2% Utilities 13.0% Health Care 12.5% Energy 11.8% Industrials 11.6% Information Technology 7.0% Communication Services 6.2% Financials 6.0% Materials 4.4% Consumer Discretionary 3.4% Real Estate 3.1% Cash & Cash Equivalents 6.8% TOP 10 HOLDINGS International Business Machines Corp. 4.1% Lockheed Martin Corp. 3.8% Exxon Mobil Corp. 3.7% AT&T, Inc. 3.4% WEC Energy Group, Inc. 3.2% Pembina Pipeline Corp. 3.2% Entergy Corp. 3.2% Crown Castle, Inc. 3.1% Citigroup, Inc. 3.1% Coca-Cola Co. 3.1% |
| Shareholder Report, Holdings (Details) - C000241955 [Member] | Sep. 30, 2024 |
| International Business Machines Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Lockheed Martin Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Exxon Mobil Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| AT&T, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| WEC Energy Group, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Pembina Pipeline Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Entergy Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Crown Castle, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Citigroup, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Coca-Cola Co. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.80% |
| Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.60% |
| Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Cash & Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
