ZEGA Buy and Hedge ETF Risks of Investing in Derivatives [Member] Options Risk [Member] Equity Market Risk [Member] FLEX Options Risk [Member] Fixed Income Securities Risk [Member] U.S.Treasury Securities Risk [Member] General Market Risk [Member] High Yield Securities Risk [Member] Other Investment Companies Risk [Member] Credit Risk [Member] ETF Risk [Member] Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] Cash Redemption Risk [Member] Costs of Buying or Selling Shares [Member] Shares May Trade at Prices Other Than NAV [Member] Trading [Member] High Portfolio Turnover Risk [Member] Interest Rate Risk [Member] Management Risk [Member] Market Capitalization Risk [Member] Large-Capitalization Investing [Member] Models and Data Risk [Member] Recent Market Events Risk [Member] Tax Risk [Member] ZEGA Buy and Hedge ETF [Member] S&P 500 Total Return Index (reflects no deduction for fees, expenses, or taxes) Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes) ZEGA Buy and Hedge ETF ZEGA Buy and Hedge ETF. S&P 500 Total Return Index (reflects no deduction for fees, expenses, or taxes). Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes). Tax Risk. Recent Market Events Risk. Models and Data Risk. Large-Capitalization Investing. Market Capitalization Risk. Management Risk. High Portfolio Turnover Risk. Trading. Shares May Trade at Prices Other Than NAV. Costs of Buying or Selling Shares. Cash Redemption Risk. Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. ETF Risk. Other Investment Companies Risk. High Yield Securities Risk. General Market Risk. U.S. Treasury Securities Risk. Fixed Income Securities Risk. FLEX Options Risk. Equity Market Risk. Options Risk. Risks of Investing in Derivatives. Interest Rate Risk. Credit Risk.