Defiance Daily Target 2X Long CRSR ETF CRSR Risks [Member] Indirect Investment in CRSR Risk [Member] CRSR Trading Risk [Member] CRSR Performance Risk [Member] CRSR Business Risks [Member] Technology Sector Risk [Member] Technology Hardware, Storage & Peripherals Industry Risk [Member] Limited Customers Risk [Member] Single Issuer Risk [Member] Compounding and Market Volatility Risk [Member] Daily Correlation/Tracking Risk [Member] Leverage Risk [Member] Derivatives Risk [Member] Swap Agreements [Member] Options Contracts [Member] Counterparty Risk [Member] Intra-Day Investment Risk [Member] Fixed Income Securities Risk [Member] Rebalancing 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 Risks [Member] Economic and Market Risk [Member] High Portfolio Turnover Risk [Member] Tracking Error Risk [Member] Liquidity Risk [Member] Money Market Instrument Risk [Member] New Fund Risk [Member] Trading Halt Risk [Member] Operational Risk [Member] U.S. Government and U.S. Agency Obligations Risk [Member] Tax Risk [Member] Defiance Daily Target 2X Long FSLY ETF FSLY Risks [Member] Indirect Investment in FSLY Risk [Member] FSLY Trading Risk [Member] FSLY Performance Risk [Member] FSLY Business Risks [Member] IT Services Industry Risks [Member] Defiance Daily Target 2X Long INFQ ETF INFQ Risks [Member] Indirect Investment in INFQ Risk [Member] INFQ Trading Risk [Member] INFQ Performance Risk [Member] INFQ Business Risks [Member] Quantum Computing Risk [Member] Newly Public Company Risks [Member] Defiance Daily Target 2X Long PI ETF PI Risks [Member] Indirect Investment in PI Risk [Member] PI Trading Risk [Member] PI Performance Risk [Member] PI Business Risks [Member] Semiconductors & Semiconductor Industry Risk [Member] Defiance Daily Target 2X Long RPID ETF RPID Risks [Member] Indirect Investment in RPID Risk [Member] RPID Trading Risk [Member] RPID Performance Risk [Member] RPID Business Risks [Member] Limited Operating History Risk [Member] Health Care Sector Risk [Member] Life Sciences Tools & Services Industry Risk [Member] Defiance Daily Target 2X Long AAOI ETF AAOI Risks [Member] Indirect Investment in AAOI Risk [Member] AAOI Trading Risk [Member] AAOI Performance Risk [Member] AAOI Business Risks [Member] Communication Equipment Industry Risk [Member] Key Customer Risk [Member] Defiance Daily Target 2X Long CRSR ETF [Member] Defiance Daily Target 2X Long FSLY ETF [Member] Defiance Daily Target 2X Long INFQ ETF [Member] Defiance Daily Target 2X Long PI ETF [Member] Defiance Daily Target 2X Long RPID ETF [Member] Defiance Daily Target 2X Long AAOI ETF [Member] Defiance Daily Target 2X Long CRSR ETF. Defiance Daily Target 2X Long CRSR ETF. Defiance Daily Target 2X Long FSLY ETF. Defiance Daily Target 2X Long FSLY ETF. Defiance Daily Target 2X Long INFQ ETF. Defiance Daily Target 2X Long INFQ ETF. Defiance Daily Target 2X Long PI ETF. Defiance Daily Target 2X Long PI ETF. Defiance Daily Target 2X Long RPID ETF. Defiance Daily Target 2X Long RPID ETF. Defiance Daily Target 2X Long AAOI ETF. Defiance Daily Target 2X Long AAOI ETF. Tax Risk. U.S. Government and U.S. Agency Obligations Risk. Operational Risk. Trading Halt Risk. New Fund Risk. Money Market Instrument Risk. Liquidity Risk. Tracking Error 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. Rebalancing Risk. Fixed Income Securities Risk. Intra-Day Investment Risk. Counterparty Risk. Options Contracts. Swap Agreements. Derivatives Risk. Leverage Risk. Daily Correlation/Tracking Risk. Compounding and Market Volatility Risk. Single Issuer Risk. Key Customer Risk. Communication Equipment Industry Risk. Technology Sector Risk. AAOI Business Risks. AAOI Performance Risk. AAOI Trading Risk. Indirect Investment in AAOI Risk. AAOI Risks. Life Sciences Tools & Services Industry Risk. Health Care Sector Risk. Limited Operating History Risk, RPID Business Risks. RPID Performance Risk. RPID Trading Risk. Indirect Investment in RPID Risk. RPID Risks. Semiconductors & Semiconductor Industry Risk. PI Business Risks. PI Performance Risk. PI Trading Risk. Indirect Investment in PI Risk. PI Risks. Newly Public Company Risks. Technology Hardware, Storage & Peripherals Industry Risk. Quantum Computing Risk. INFQ Business Risks. INFQ Performance Risk. INFQ Trading Risk. Indirect Investment in INFQ Risk. INFQ Risks. Limited Customers Risk. IT Services Industry Risks. FSLY Business Risks. FSLY Performance Risk. FSLY Trading Risk. Indirect Investment in FSLY Risk. FSLY Risks. CRSR Business Risks. CRSR Performance Risk. CRSR Trading Risk. Indirect Investment in CRSR Risk. CRSR Risks. Liquidity Risks.