Defiance Long/Short Space Economy vs. Legacy Communications ETF Satellite Communications and Space Industry Risk [Member] Industrials Sector Risk [Member] Communication Services Sector Risk [Member] Leverage Risk [Member] Short Selling Risk [Member] Equity Market Risk [Member] Management Risk [Member] Derivatives Risk [Member] Futures Contracts [Member] Options Contracts [Member] Swap Agreements [Member] Equity Total Return Swaps [Member] Counterparty Risk [Member] Concentration 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] Economic and Market Risk [Member] Foreign Securities Risk [Member] Currency Exchange Rate Risk [Member] Depositary Receipt Risk [Member] Developed Markets Risk [Member] Emerging Markets Risk [Member] High Portfolio Turnover Risk [Member] Liquidity Risks [Member] Money Market Instrument Risk [Member] New Fund Risk [Member] Operational Risk [Member] IPO/SPAC/de-SPAC Risk [Member] Warrants and Rights Risk [Member] Tax Risk [Member] Defiance Long/Short AI Compute vs. Legacy Software ETF Sector and Industry Risks [Member] Artificial Intelligence Risk [Member] Compute Risk [Member] Datacenter Industry Risk [Member] Semiconductors & Semiconductor Equipment Industry Risk [Member] Software Industry Risk [Member] Technology Sector Risk [Member] Defiance Long/Short Space Economy vs. Legacy Communications ETF [Member] Defiance Long/Short AI Compute vs. Legacy Software ETF [Member] Defiance Long/Short Space Economy vs. Legacy Communications ETF Defiance Long/Short Space Economy vs. Legacy Communications ETF Defiance Long/Short AI Compute vs. Legacy Software ETF Defiance Long/Short AI Compute vs. Legacy Software ETF Tax Risk. Warrants and Rights Risk. IPO/SPAC/de-SPAC Risk. Operational Risk. New Fund Risk. Money Market Instrument Risk. Liquidity Risk. Liquidity Risks. High Portfolio Turnover Risk. Emerging Markets Risk. Depositary Receipt Risk. Currency Exchange Rate Risk. Foreign Securities Risk. Economic and Market 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. Concentration Risk. Counterparty Risk. Equity Total Return Swaps. Swap Agreements. Options Contracts. Futures Contracts. Derivatives Risk. Management Risk. Equity Market Risk. Short Selling Risk. Leverage Risk. Technology Sector Risk. Semiconductors & Semiconductor Equipment Industry Risk. Software Industry Risk. Datacenter Industry Risk. Compute Risk. Artificial Intelligence Risk. Sector and Industry Risks. Developed Markets Risk. Communication Services Sector Risk. Industrials Sector Risk. Satellite Communications and Space Industry Risk.