Defiance Nasdaq 100 Autocallable Income ETF Autocallable Index and Payoff Structure Risks [Member] Underlying Reference Index Risk [Member] Derivatives Risks [Member] Swap Agreements [Member] Counterparty Risk [Member] Distribution Risk [Member] NAV Erosion Risk Due to Distributions [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] Economic and Market Risk [Member] High Portfolio Turnover Risk [Member] Inflation Risk [Member] Management Risk [Member] Money Market Instrument Risk [Member] New Fund Risk [Member] Operational Risk [Member] Tax Risk [Member] U.S. Government and U.S. Agency Obligations Risk [Member] Defiance Bitcoin Autocallable ETF IBIT Risk [Member] Cayman Subsidiary Risk [Member] Commodity Pool Regulatory Risk [Member] ETF Risk [Member] Defiance Gold Autocallable ETF GLD Risk [Member] Defiance Silver Autocallable ETF SLV Risk [Member] Defiance Nasdaq 100 Autocallable Income ETF [Member] Defiance Bitcoin Autocallable ETF [Member] Defiance Gold Autocallable ETF [Member] Defiance Silver Autocallable ETF [Member] Defiance Nasdaq 100 Autocallable Income ETF. Defiance Nasdaq 100 Autocallable Income ETF. Defiance Bitcoin Autocallable ETF. Defiance Bitcoin Autocallable ETF. Defiance Gold Autocallable ETF. Defiance Gold Autocallable ETF. Defiance Silver Autocallable ETF. Defiance Silver Autocallable ETF. U.S. Government and U.S. Agency Obligations Risk. Tax Risk. Operational Risk. New Fund Risk. Money Market Instrument Risk. Management Risk. Inflation Risk. High Portfolio Turnover 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. Commodity Pool Regulatory Risk. NAV Erosion Risk Due to Distributions. Distribution Risk. Counterparty Risk. Cayman Subsidiary Risk. Swap Agreements. Derivatives Risks. SLV Risk. Underlying Reference Index Risk. Autocallable Index and Payoff Structure Risks. GLD Risk. ETF Risk. IBIT Risk.