STKd 100% Bitcoin & 100% Gold ETF Bitcoin Investment Risks [Member] Digital Assets Risk [Member] Digital Asset Markets Risk [Member] Blockchain Technology Risk [Member] Gold Investment Risks [Member] Derivatives Risks [Member] Futures Contracts [Member] Options Contracts [Member] Swaps [Member] Underlying Fund Risk [Member] Underlying Bitcoin Fund Risks [Member] Underlying Gold Fund Risks [Member] Potentially No 1940 Act Protections [Member] Cayman Subsidiary Risk [Member] Commodity-Linked Derivatives Tax Risk [Member] Commodity Pool Regulatory Risk [Member] Tax Risk [Member] Leverage Risk [Member] Counterparty Risk [Member] Concentration Risk [Member] Reverse Repurchase Agreement 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] Management Risk [Member] Money Market Instrument Risk [Member] Newer Fund Risk [Member] Newer Sub-Adviser Risk [Member] Operational Risk [Member] U.S. Government and U.S. Agency Obligations Risk [Member] STKd 100% Bitcoin & 100% Gold ETF [Member] S&P 500® Total Return Index (reflects no deduction for fees, expenses, or taxes) STKd 100% Bitcoin & 100% Gold ETF STKd 100% Bitcoin & 100% Gold ETF [Member] Operational Risk. Management Risk. Leverage Risk. Underlying Fund Risk. Economic and Market Risk. Trading. Shares May Trade at Prices Other Than NAV. Costs of Buying or Selling Shares. Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. ETF Risks. Futures Contracts. Underlying Gold Fund Risks. Underlying Bitcoin Fund Risks. Tax Risk. Reverse Repurchase Agreement Risk. Newer Sub-Adviser Risk. Newer Fund Risk. Money Market Instrument Risk. High Portfolio Turnover Risk. Counterparty Risk. Concentration Risk. Commodity Pool Regulatory Risk. Commodity-Linked Derivatives Tax Risk. Cash Redemption Risk. Cayman Subsidiary Risk. Bitcoin Investment Risks. Digital Assets Risk. Digital Asset Markets Risk. Blockchain Technology Risk. Gold Investment Risks. Potentially No 1940 Act Protections. U.S. Government and U.S. Agency Obligations Risk. Derivatives Risks. Swaps. S&P 500® Total Return Index (reflects no deduction for fees, expenses, or taxes). Options Contracts.