| Shareholder Report | 11 Months Ended | 12 Months Ended |
| Sep. 30, 2024 USD ($) holding | Sep. 30, 2024 USD ($) 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 | | Sep. 30, 2024 |
| C000143786 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect U.S. Quantitative Value ETF |
| Class Name | | Alpha Architect U.S. Quantitative Value ETF |
| Trading Symbol | | QVAL |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect U.S. Quantitative Value ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. This report describes changes to the Fund that occurred during the Period. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/qval |
| 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 $36 0.32% |
| Expenses Paid, Amount | | $ 36 |
| Expense Ratio, Percent | | 0.32% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year 5 Year Since Inception (10/21/2014) Alpha Architect U.S. Quantitative Value ETF - NAV 26.33% 12.71% 8.09% Solactive GBS United States 1000 Index 35.20% 15.06% 12.71% 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://funds.alphaarchitect.com/qval for more recent performance information. |
| Performance Inception Date | | Oct. 21, 2014 |
| Net Assets | $ 376,221,478 | $ 376,221,478 |
| Holdings Count | holding | 51 | 51 |
| Advisory Fees Paid, Amount | | $ 1,023,524 |
| Investment Company, Portfolio Turnover | | 223% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $376,221,478 Portfolio Turnover Rate* 223% # of Portfolio Holdings 51 Advisory Fees Paid $1,023,524 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Consumer Discretionary 26.9% Industrials 23.0% Energy 16.3% Communication Services 10.1% Health Care 9.6% Materials 6.1% Information Technology 4.0% Consumer Staples 3.7% Cash & Cash Equivalents 0.2% TOP 10 HOLDINGS Powell Industries, Inc. 2.6% Signet Jewelers Ltd. 2.4% Delta Air Lines, Inc. 2.3% Williams-Sonoma, Inc. 2.3% Freeport-McMoRan, Inc. 2.2% Tapestry, Inc. 2.2% Caterpillar, Inc. 2.1% Jabil, Inc. 2.1% Ulta Beauty, Inc. 2.1% CVS Health Corp. 2.1% |
| Material Fund Change Name [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/qval or by calling (215) 330-4476. |
| C000143787 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect International Quantitative Value ETF |
| Class Name | | Alpha Architect International Quantitative Value ETF |
| Trading Symbol | | IVAL |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect International Quantitative Value ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/ival |
| 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 $45 0.42% |
| Expenses Paid, Amount | | $ 45 |
| Expense Ratio, Percent | | 0.42% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year 5 Year Since Inception (12/16/2014) Alpha Architect International Quantitative Value ETF - NAV 13.38% 3.79% 3.72% Solactive GBS Developed Markets ex North America Large & Mid Cap Index 24.68% 8.12% 6.32% 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://funds.alphaarchitect.com/ival for more recent performance information. |
| Performance Inception Date | | Dec. 16, 2014 |
| Net Assets | $ 150,759,000 | $ 150,759,000 |
| Holdings Count | holding | 51 | 51 |
| Advisory Fees Paid, Amount | | $ 632,933 |
| Investment Company, Portfolio Turnover | | 155% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $150,759,000 Portfolio Turnover Rate* 155% # of Portfolio Holdings 51 Advisory Fees Paid $632,933 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Industrials 27.9% Consumer Discretionary 26.6% Materials 13.1% Energy 9.6% Utilities 8.0% Consumer Staples 8.0% Information Technology 3.9% Real Estate 1.9% Investments Purchased with Proceeds from Securities Lending 1.8% Cash & Cash Equivalents 0.1% TOP 10 HOLDINGS Rio Tinto Ltd. 2.4% Fortescue Ltd. 2.4% Rexel SA 2.3% SSAB AB - Class B 2.2% SKF AB - Class B 2.2% easyJet PLC 2.1% Aurizon Holdings Ltd. 2.1% Cie de Saint-Gobain SA 2.1% Yamazaki Baking Co. Ltd. 2.1% Fortum Oyj 2.1% COUNTRY WEIGHTING Japan 49.8% France 10.0% Australia 8.9% United Kingdom 7.9% Sweden 6.5% Italy 6.1% Finland 4.0% Singapore 2.0% China 1.9% Portugal 1.9% United States 1.9% |
| Material Fund Change Name [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/ival or by calling (215) 330-4476. Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as the Fund’s sub-adviser. |
| C000143788 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect U.S. Quantitative Momentum ETF |
| Class Name | | Alpha Architect U.S. Quantitative Momentum ETF |
| Trading Symbol | | QMOM |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect U.S. Quantitative Momentum ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/qmom |
| 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 $40 0.32% |
| Expenses Paid, Amount | | $ 40 |
| Expense Ratio, Percent | | 0.32% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year Since Inception (11/9/2022) Alpha Architect U.S. Quantitative Momentum ETF - NAV 49.97% 17.03% 11.67% Solactive GBS United States 1000 Index 35.20% 15.06% 13.24% 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://funds.alphaarchitect.com/qmom for more recent performance information. |
| Performance Inception Date | | Nov. 09, 2022 |
| Net Assets | $ 252,563,718 | $ 252,563,718 |
| Holdings Count | holding | 51 | 51 |
| Advisory Fees Paid, Amount | | $ 625,008 |
| Investment Company, Portfolio Turnover | | 363% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $252,563,718 Portfolio Turnover Rate* 363% # of Portfolio Holdings 51 Advisory Fees Paid $625,008 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Financials 27.0% Consumer Discretionary 17.7% Industrials 16.1% Information Technology 13.9% Utilities 7.3% Health Care 5.9% Communication Services 4.2% Consumer Staples 3.9% Materials 2.1% Energy 1.6% Cash & Cash Equivalents 0.3% TOP 10 HOLDINGS Vistra Corp. 2.7% Constellation Energy Corp. 2.5% Zeta Global Holdings Corp. - Class A 2.2% Fair Isaac Corp. 2.2% Carpenter Technology Corp. 2.1% Blue Owl Capital, Inc. - Class A 2.1% EMCOR Group, Inc. 2.1% Meta Platforms, Inc. - Class A 2.1% Natera, Inc. 2.1% Trane Technologies PLC 2.1% |
| Material Fund Change Name [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/qmom or by calling (215) 330-4476. Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as the Fund’s sub-adviser. |
| C000143789 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect International Quantitative Momentum ETF |
| Class Name | | Alpha Architect International Quantitative Momentum ETF |
| Trading Symbol | | IMOM |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect International Quantitative Momentum ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/imom |
| 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 $46 0.42% |
| Expenses Paid, Amount | | $ 46 |
| Expense Ratio, Percent | | 0.42% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year 5 Year Since Inception (12/22/2015) Alpha Architect International Quantitative Momentum ETF - NAV 21.01% 4.65% 3.32% Solactive GBS Developed Markets ex North America Large & Mid Cap Index 24.68% 8.12% 7.20% 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://funds.alphaarchitect.com/ for more recent performance information. |
| Performance Inception Date | | Dec. 22, 2015 |
| Net Assets | $ 82,652,321 | $ 82,652,321 |
| Holdings Count | holding | 51 | 51 |
| Advisory Fees Paid, Amount | | $ 332,566 |
| Investment Company, Portfolio Turnover | | 219% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $82,652,321 Portfolio Turnover Rate* 219% # of Portfolio Holdings 51 Advisory Fees Paid $332,566 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Financials 31.8% Industrials 19.7% Information Technology 15.7% Health Care 8.4% Communication Services 6.2% Materials 6.2% Consumer Discretionary 5.9% Consumer Staples 2.1% Energy 1.9% Real Estate 1.3% Cash & Cash Equivalents 0.2% TOP 10 HOLDINGS Commerzbank AG 2.5% Telix Pharmaceuticals Ltd. 2.4% Pro Medicus Ltd. 2.4% Sea Ltd. - ADR 2.3% IHI Corp. 2.2% Rolls-Royce Holdings PLC 2.2% 3i Group PLC 2.1% Marks & Spencer Group PLC 2.1% Deutsche Bank AG 2.1% Asics Corp. 2.1% COUNTRY WEIGHTING Japan 27.0% Italy 9.9% Australia 8.7% Germany 8.4% United Kingdom 8.4% Sweden 7.8% Denmark 5.7% Switzerland 4.1% Austria 3.3% Singapore 2.3% Israel 2.0% Spain 2.0% Ireland 2.0% Belgium 1.9% Norway 1.9% Portugal 1.9% Netherlands 1.9% United States 0.2% |
| Material Fund Change Expenses [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/imom or by calling (215) 330-4476. Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as the Fund’s sub-adviser. |
| C000183146 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect Value Momentum Trend ETF |
| Class Name | | Alpha Architect Value Momentum Trend ETF |
| Trading Symbol | | VMOT |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect Value Momentum Trend ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/vmot |
| 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 $36 0.32% |
| Expenses Paid, Amount | | $ 36 |
| Expense Ratio, Percent | | 0.32% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? The Fund returned 23.05% (NAV) for the Period vs. 32.22% for the Solactive GBS Global Markets Large & Mid Cap Index. During the Period, markets reacted positively to strong corporate earnings, resilient economic conditions, and Federal Reserve policy, with larger-cap stocks leading performance. The Fund’s tilt toward (1) deeper value stocks as measured by EBIT/TEV, (2) higher momentum ex-U.S. stocks, (3) use of trend-following, and (4) relative value-momentum weighting detracted from returns relative to the benchmark, while exposure to higher momentum U.S. stocks contributed positively. |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year 5 Year Since Inception (5/2/2017) Alpha Architect Value Momentum Trend ETF - NAV 23.05% 4.22% 2.26% Solactive GBS Global Markets Large & Mid Cap Index 32.22% 12.66% 11.24% 35% Solactive GBS United States 1000 Index/35% Solactive GBS Developed Markets ex North America Large & Mid Cap Index/30% Solactive 1-3 month U.S. T-Bill Index 22.25% 9.12% 8.05% Solactive GBS United States 1000 Index 35.20% 15.06% 13.70% Solactive GBS Developed Markets ex North America Large & Mid Cap Index 24.68% 8.12% 6.74% Solactive 1-3 month U.S. T-Bill Index 5.51% 2.34% 2.15% The Solactive GBS Global Markets Large & Mid Cap Index is provided as a broad measure of market performance. The 35% Solactive GBS United States 1000 Index/35% Solactive GBS Developed Markets ex North America Large & Mid Cap Index/30% Solactive 1-3 month U.S. T-Bill 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://funds.alphaarchitect.com/vmot for more recent performance information. |
| Performance Inception Date | | May 02, 2017 |
| Net Assets | $ 21,787,725 | $ 21,787,725 |
| Holdings Count | holding | 5 | 5 |
| Advisory Fees Paid, Amount | | $ 128,537 |
| Investment Company, Portfolio Turnover | | 33% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $21,787,725 Advisory Fees $128,537 # of Portfolio Holdings 5 Fees Waived and/or Expenses Reimbursed (37,970) Portfolio Turnover Rate* 33% Net Advisory Fees Paid $90,567 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Exchange Traded Funds 99.6% Investments Purchased with Proceeds from Securities Lending 10.8% Cash & Cash Equivalents 0.4% TOP HOLDINGS Alpha Architect US Quantitative Momentum ETF 35.6% Alpha Architect US Quantitative Value ETF 29.9% Alpha Architect International Quantitative Momentum ETF 19.5% Alpha Architect International Quantitative Value ETF 14.6% |
| Material Fund Change Name [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/vmot or by calling (215) 330-4476. Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as the Fund’s sub-adviser. |
| C000238196 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect High Inflation and Deflation ETF |
| Class Name | | Alpha Architect High Inflation and Deflation ETF |
| Trading Symbol | | HIDE |
| Security Exchange Name | | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect High Inflation and Deflation ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/hide |
| 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 $24 0.24% |
| Expenses Paid, Amount | | $ 24 |
| Expense Ratio, Percent | | 0.24% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year Since Inception (11/16/2022) Alpha Architect High Inflation and Deflation ETF - NAV 3.91% 2.45% Solactive US Aggregate Bond Index 11.25% 5.22% 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://funds.alphaarchitect.com/hide for more recent performance information. |
| Performance Inception Date | | Nov. 16, 2022 |
| Net Assets | $ 30,270,823 | $ 30,270,823 |
| Holdings Count | holding | 4 | 4 |
| Advisory Fees Paid, Amount | | $ 62,674 |
| Investment Company, Portfolio Turnover | | 267% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $30,270,823 Advisory Fees $62,674 # of Portfolio Holdings 4 Fees Waived and/or Expenses Reimbursed (10,289) Portfolio Turnover Rate* 267% Net Advisory Fees Paid $52,385 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | SECTOR WEIGHTING Exchange Traded Funds 75.8% U.S. Treasury Bills 23.7% Cash & Cash Equivalents 0.3% TOP HOLDINGS Schwab Intermediate-Term U.S. Treasury ETF 51.2% Vanguard Real Estate ETF 24.6% United States Treasury Bill 5.13%, 10/03/2024 23.6% |
| C000238588 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | | Alpha Architect Tail Risk ETF |
| Class Name | | Alpha Architect Tail Risk ETF |
| Trading Symbol | | CAOS |
| Security Exchange Name | | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | | This annual shareholder report contains important information about the Alpha Architect Tail Risk ETF (the “Fund”) for the period of October 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. |
| Shareholder Report Annual or Semi-Annual | | annual shareholder report |
| Additional Information Phone Number | | (215) 330-4476 |
| Additional Information Website | | https://funds.alphaarchitect.com/caos |
| 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 $55 0.53% |
| Expenses Paid, Amount | | $ 55 |
| Expense Ratio, Percent | | 0.53% |
| Factors Affecting Performance [Text Block] | | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? As a tail risk fund, CAOS is designed to hedge against significant market downturns by using derivatives—primarily far-out-of-the-money put options on the S&P 500 Index—to protect portfolios during extreme market events. These far-out-of-the-money put options generally require periods of sharp market decline with an increase in implied volatility to gain value. If there is no such event, these options lose their value over time. To combat this erosion in value, the Fund employs two additional strategies in an effort to maintain its long volatility exposure while offering patient investors an opportunity for positive return during these sometimes long interim periods. During the fiscal year, the equity market climbed higher, reducing the need for downside protection. The Fund trades short put spreads, which benefits the Fund should the market go higher. These put spreads involve selling a high strike put to gain market exposure, generally to the S&P 500 Index, and the purchase of a lower strike put on the same asset to limit any sizeable losses from the higher strike put. The maximum gain from this trade is the net premium collected at the outset of the trade, while the loss is equal to the difference in the strikes of the two put options less the initial net premium collected. This trade should benefit when the market climbs higher and was helpful to the Fund’s performance. By the summer of 2024, growing concerns about a potential economic slowdown, coupled with speculation around possible rate cuts from the Federal Reserve, led to a modest increase in market volatility. The uptick in volatility towards the end of the fiscal year highlighted the potential of the Fund’s tail risk strategy. However, the degree to which the Federal Reserve sought to reduce short-term rates moderated. This delay permitted the Fund’s idle collateral to collect a stable return without equity market or volatility exposure. Similar to the put spread sales, the collateral yield positively contributed to the Fund return. |
| Line Graph [Table Text Block] | | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT |
| Average Annual Return [Table Text Block] | | AVERAGE ANNUAL TOTAL RETURNS 1 Year 5 Year 10 Year Alpha Architect Tail Risk ETF - NAV 6.36% 5.48% 3.23% S&P 500 Index 36.35% 15.98% 13.38% 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://funds.alphaarchitect.com/caos for more recent performance information. |
| Net Assets | $ 248,524,832 | $ 248,524,832 |
| Holdings Count | holding | 19 | 19 |
| Advisory Fees Paid, Amount | | $ 1,192,650 |
| Investment Company, Portfolio Turnover | | 14% |
| Additional Fund Statistics [Text Block] | | KEY FUND STATISTICS (as of Period End) Net Assets $248,524,832 Advisory Fees $1,192,650 # of Portfolio Holdings 19 Fees Waived and/or Expenses Reimbursed (186,924) Portfolio Turnover Rate* 14% Net Advisory Fees Paid $1,005,726 *Excludes impact of in-kind transactions. |
| Holdings [Text Block] | | ASSET CLASSES (as a % of Net Assets) Purchased Options 117.0% Exchange Traded Funds 11.7% Written Options (29.2)% Cash & Cash Equivalents 0.5% |
| Material Fund Change Name [Text Block] | | Material Fund Changes This is a summary of certain changes to the Fund since October 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/caos or by calling (215) 330-4476. Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as a sub-adviser to the Fund. |
| C000237974 [Member] | | |
| Shareholder Report [Line Items] | | |
| Fund Name | Alpha Architect 1-3 Month Box ETF | |
| Class Name | Alpha Architect 1-3 Month Box ETF | |
| Trading Symbol | BOXX | |
| Security Exchange Name | CboeBZX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Alpha Architect 1-3 Month Box ETF (the “Fund”) for the period of November 1, 2023 to September 30, 2024 (the “Period”). You can find additional information about the Fund at https://funds.alphaarchitect.com/. You can also request this information by contacting us at (215) 330-4476. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information Phone Number | (215) 330-4476 | |
| Additional Information Website | https://funds.alphaarchitect.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 $18 0.1949% | |
| Expenses Paid, Amount | $ 18 | |
| Expense Ratio, Percent | 0.1949% | |
| Factors Affecting Performance [Text Block] | WHAT FACTORS INFLUENCED PERFORMANCE FOR THE PERIOD? The Fund benefited from the low-volatility environment and expectations for future rate cuts. The Fund primarily uses a strategy centered on derivatives, specifically box spreads utilizing options, such as those linked to the S&P 500. • Stable Interest Rates: For much of the fiscal year, short-term interest rates remained stable, as the Federal Reserve maintained its interest rate policy after a period of aggressive tightening. This environment provided a consistent backdrop for the Fund’s box spread strategy, which aims to provide investment results that, before fees and expenses, equal or exceed the price and yield performance of an investment that tracks the 1-3 month sector of the United States Treasury Bill market. • Increased Market Optimism in Mid-2024: By the summer of 2024, market sentiment shifted as expectations for rate cuts grew due to signs of economic slowing and inflation moderation. The Fund’s strategy benefited from the calm market environment as volatility remained low. This allowed the Fund to achieve modest positive returns without being impacted by the more pronounced shifts in longer-duration fixed-income securities. • Derivatives Liquidity: Throughout the year, the liquidity of the options market, in which the Fund’s box spreads are executed, remained robust. This allowed the Fund to operate efficiently without major disruptions. | |
| Line Graph [Table Text Block] | PERFORMANCE OF A HYPOTHETICAL $10,000 INVESTMENT | |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS 1 Year Since Inception (12/27/2022) Alpha Architect 1-3 Month Box ETF - NAV 5.40% 5.14% Solactive US Aggregate Bond Index 11.25% 5.48% Solactive 1-3 Month US T-Bill Index 5.51% 5.28% The Solactive US Aggregate Bond Index is provided as a broad measure of market performance. The Solactive 1-3 Month US T-Bill Index is provided as a measure of the Fund’s investment objective and strategy. 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://funds.alphaarchitect.com/boxx for more recent performance information. | |
| Performance Inception Date | | Dec. 27, 2022 |
| Net Assets | $ 3,968,953,465 | $ 3,968,953,465 |
| Holdings Count | holding | 33 | 33 |
| Advisory Fees Paid, Amount | $ 8,116,529 | |
| Investment Company, Portfolio Turnover | 0% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of Period End) Net Assets $3,968,953,465 Advisory Fees $8,116,529 # of Portfolio Holdings 33 Fees Waived and/or Expenses Reimbursed (4,110,676) Portfolio Turnover Rate* 0% Net Advisory Fees Paid $4,005,853 *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] | ASSET CLASSES (as a % of net assets) Purchased Options 158.5% Written Options (58.5)% | |
| Material Fund Change Name [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by January 31, 2025, at funds.alphaarchitect.com/boxx or by calling (215) 330-4476. • Effective June 21, 2024, the Fund’s Board of Trustees approved Alpha Architect, LLC to serve as a sub-adviser to the Fund. • The Fund revised its principal investment strategies to reflect, among other things, its use of options on broad-based diversified assets such as the SPDR® S&P 500® ETF Trust for substantially all of the Fund’s holdings. The Fund also added “Tax Risk” as a principal investment risk. • Effective November 12, 2024, the Adviser reduced the Fund’s management fee from 0.3949% to 0.2449%. | |
