| Form N-CSR Cover | 12 Months Ended |
| Jul. 31, 2024 | |
| 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, 2024 |
| Shareholder Report | 12 Months Ended |
| Jul. 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 | Jul. 31, 2024 |
| 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 September 13, 2023 to July 31, 2024 (the “Period”). |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information Phone Number | (215) 882-9983 |
| Additional Information Website | www.bushidoetf.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 $69 0.71% |
| Expenses Paid, Amount | $ 69 |
| Expense Ratio, Percent | 0.71% |
| Line Graph [Table Text Block] | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | CUMULATIVE TOTAL RETURNS Since Inception (9/13/2023) Bushido Capital U.S. Equity ETF - NAV 19.99% Bushido Capital U.S. Equity ETF - Market 20.08% Solactive GBS United States 1000 Index 24.38% S&P 500 Value Index 20.65% 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 www.bushidoetf.com for more recent performance information. |
| Performance Inception Date | Sep. 13, 2023 |
| Net Assets | $ 357,034,962 |
| Holdings Count | holding | 51 |
| Advisory Fees Paid, Amount | $ 1,889,891 |
| Investment Company, Portfolio Turnover | 152% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of Period End) Net Assets $357,034,962 Portfolio Turnover Rate* 152% # of Portfolio Holdings 51 Advisory Fees Paid $1,889,891 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | SECTOR WEIGHTING Health Care 22.7% Consumer Discretionary 19.1% Industrials 16.1% Energy 16.1% Information Technology 11.8% Communication Services 6.2% Financials 2.1% Materials 2.0% Utilities 1.9% Consumer Staples 1.8% Cash & Cash Equivalents 0.2% TOP 10 HOLDINGS Centene Corp. 2.3% Molina Healthcare, Inc. 2.3% Valero Energy Corp. 2.1% Lockheed Martin Corp. 2.1% PayPal Holdings, Inc. 2.1% Marathon Petroleum Corp. 2.1% SS&C Technologies Holdings, Inc. 2.1% Gilead Sciences, Inc. 2.1% Comcast Corp. - Class A 2.1% Electronic Arts, Inc. 2.1% |
| Shareholder Report, Line Graph (Details) - USD ($) | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Sep. 13, 2023 |
| C000243188 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Account Value | $ 11,999 | $ 11,397 | $ 11,566 | $ 11,329 | $ 11,916 | $ 11,021 | $ 10,623 | $ 10,614 | $ 10,108 | $ 9,524 | $ 9,745 | $ 10,000 |
| Solactive GBS United States 1000 Index ($12,438) [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Account Value | 12,438 | 12,262 | 11,872 | 11,342 | 11,848 | 11,481 | 10,896 | 10,749 | 10,247 | 9,376 | 9,613 | 10,000 |
| S&P 500 Value Index ($12,065) [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Account Value | $ 12,065 | $ 11,519 | $ 11,595 | $ 11,260 | $ 11,766 | $ 11,254 | $ 10,921 | $ 10,889 | $ 10,318 | $ 9,417 | $ 9,582 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 11 Months Ended |
| Jul. 31, 2024 | |
| C000243188 [Member] | |
| Average Annual Return [Line Items] | |
| Average Annual Return, Percent | 19.99% |
| Solactive GBS United States 1000 Index [Member] | |
| Average Annual Return [Line Items] | |
| Average Annual Return, Percent | 24.38% |
| S&P 500 Value Index [Member] | |
| Average Annual Return [Line Items] | |
| Average Annual Return, Percent | 20.65% |
| Shareholder Report, Holdings (Details) - C000243188 [Member] | Jul. 31, 2024 |
| Centene Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Molina Healthcare, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Valero Energy Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Lockheed Martin Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| PayPal Holdings, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Marathon Petroleum Corp. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| SS&C Technologies Holdings, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Gilead Sciences, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Comcast Corp. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Electronic Arts, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.70% |
| Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.10% |
| Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.10% |
| Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.10% |
| Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.80% |
| Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Cash & Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
