Buffered Bulldog ETF by C.J. Lawrence, a division of Apollon Equity Market Risk [Member] Derivatives Risk [Member] Options Contracts [Member] Counterparty Risk [Member] Sector Risks [Member] Put/Spread Collar Strategy Risk [Member] Economic and Market Risk [Member] ETF Risks [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] Liquidity Risk [Member] Foreign Securities Risk [Member] Depositary Receipt Risk [Member] Management Risk [Member] Market Capitalization Risks [Member] Large-Capitalization Investing [Member] Mid-Capitalization Investing [Member] New Fund Risk [Member] Operational Risk [Member] Money Market Instrument Risk [Member] U.S. Government and U.S. Agency Obligations Risk [Member] Tax Risk [Member] Buffered Bulldog ETF by C.J. Lawrence, a division of Apollon [Member] Buffered Bulldog ETF by C.J. Lawrence, a division of Apollon. Buffered Bulldog ETF by C.J. Lawrence, a division of Apollon. Tax Risk. U.S. Government and U.S. Agency Obligations Risk. Money Market Instrument Risk. Operational Risk. New Fund Risk. Mid-Capitalization Investing. Large-Capitalization Investing. Market Capitalization Risks. Management Risk. Depositary Receipt Risk. Foreign Securities Risk. Liquidity 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 Risks. Economic and Market Risk. Put/Spread Collar Strategy Risk. Sector Risks. Counterparty Risk. Options Contracts. Derivatives Risk. Equity Market Risk.