| 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 |
| C000235073 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Relative Sentiment Tactical Allocation ETF |
| Class Name | Relative Sentiment Tactical Allocation ETF |
| Trading Symbol | MOOD |
| Security Exchange Name | NASDAQ |
| 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.relativesentimentetfs.com |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE PERIOD? (based on a hypothetical $10,000 investment) COST OF $10,000 INVESTMENT COST PAID AS A PERCENTAGE OF $10,000 INVESTMENT $34 0.65% |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 18,043,561 |
| Holdings Count | holding | 8 |
| Advisory Fees Paid, Amount | $ 52,923 |
| Investment Company, Portfolio Turnover | 66% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of Period End) Net Assets $18,043,561 Advisory Fees $52,923 # of Portfolio Holdings 8 Portfolio Turnover Rate* 66% *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 Fixed Income ETFs 44.0% Currency Derivative ETFs 20.1% Domestic Stock ETFs 18.5% Global Stock ETFs 16.9% Cash & Cash Equivalents 0.5% TOP HOLDINGS (as a % of Net Assets) Invesco DB US Dollar Index Bullish Fund 20.1% Vanguard Total Stock Market ETF 18.5% Vanguard FTSE Developed Markets ETF 16.9% Schwab US TIPS ETF 15.3% iShares 1-3 Year Treasury Bond ETF 15.3% iShares Core U.S. Aggregate Bond ETF 13.3% |
| Shareholder Report, Holdings (Details) - C000235073 [Member] | Sep. 30, 2024 |
| Invesco DB US Dollar Index Bullish Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.10% |
| Vanguard Total Stock Market ETF [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.50% |
| Vanguard FTSE Developed Markets ETF [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| Schwab US TIPS ETF [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.30% |
| iShares 1-3 Year Treasury Bond ETF [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.30% |
| iShares Core U.S. Aggregate Bond ETF [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Fixed Income ETFs [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| Currency Derivative ETFs [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.10% |
| Domestic Stock ETFs [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.50% |
| Global Stock ETFs [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| Cash & Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
