Defiance Daily Target 2X Long ASTS ETF ASTS Risks [Member] Indirect Investment in ASTS Risk [Member] ASTS Trading Risk [Member] ASTS Performance Risk [Member] ASTS Investing Risk [Member] ASTS Operations Regulatory and Key Person Risk [Member] Technology Sector Risk [Member] Communication Services Sector 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 Risk [Member] Economic and Market Risk [Member] High Portfolio Turnover Risk [Member] Tracking Error Risk [Member] Liquidity Risks [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 BKSY ETF BKSY Risks [Member] Indirect Investment in BKSY Risk [Member] BKSY Trading Risk [Member] BKSY Performance Risk [Member] BKSY Operational and Regulatory Risk [Member] Key Customers Risk [Member] CommercialProfessional Services Industry Risk [Member] Defiance Daily Target 2X Long COHR ETF COHR Risks [Member] Indirect Investment in COHR Risk [Member] COHR Trading Risk [Member] COHR Performance Risk [Member] COHR Operational and Regulatory Risk [Member] Key Customer Risks [Member] COHR Restructuring Risk [Member] Electronic Equipment Instruments and Components Industry Risk [Member] Defiance Daily Target 2X Long ENVX ETF ENVX Risks [Member] Indirect Investment in ENVX Risk [Member] ENVX Trading Risk [Member] ENVX Performance Risk [Member] ENVX Operations and Regulatory Risk [Member] Battery Market Competition Risk [Member] Electrical Equipment Industry Risk [Member] Defiance Daily Target 2X Long FRSH ETF FRSH Risks [Member] Indirect Investment in FRSH Risk [Member] FRSH Trading Risk [Member] FRSH Performance Risk [Member] FRSH Operations and Regulatory Risk [Member] Software Industry Risk [Member] Defiance Daily Target 2X Long GSAT ETF Gsat Risks Member [Member] Indirect Investment in GSAT Risk [Member] GSAT Trading Risk [Member] GSAT Performance Risk [Member] GSAT Operations and Regulatory Risk [Member] GSAT Customer Concentration Risk [Member] Defiance Daily Target 2X Long JD ETF JD Risks [Member] Indirect Investment in JD Risk [Member] JD Trading Risk [Member] JD Performance Risk [Member] JD Operations and Regulatory Risk [Member] JD Business Structural Risks [Member] Holding Foreign Companies Accountable Act (HFCAA) Risks [Member] Internet & Direct Marketing Retail Risk [Member] Defiance Daily Target 2X Long LEU ETF LEU Risks [Member] Indirect Investment in LEU Risk [Member] LEU Trading Risk [Member] LEU Performance Risk [Member] Uranium and Nuclear Fuel Supply Risk [Member] LEU Operations and Regulatory Risk [Member] Oil Gas and Consumable Fuels Industry Risk [Member] Defiance Daily Target 2X Long OUST ETF OUST Risks [Member] Indirect Investment in OUST Risk [Member] OUST Trading Risk [Member] OUST Performance Risk [Member] OUST Operational and Regulatory Risk [Member] Defiance Daily Target 2X Long RDW ETF RDW Risks [Member] Indirect Investment in RDW Risk [Member] RDW Trading Risk [Member] RDW Performance Risk [Member] RDW Operational and Regulatory Risk [Member] Aerospace & Defense Industry Risks [Member] Defiance Daily Target 2X Long RVMD ETF RVMD Risks [Member] Indirect Investment in RVMD Risk [Member] RVMD Trading Risk [Member] Health Care Sector Risk [Member] Biotechnology Company Risk [Member] Pharmaceutical Company Risk [Member] Defiance Daily Target 2X Long STX ETF STX Risks [Member] Indirect Investment in STX Risk [Member] STX Trading Risk [Member] STX Performance Risk [Member] STX Operational and Regulatory Risk [Member] Technology Hardware Storage & Peripherals Industry Risk [Member] Defiance Daily Target 2X Long VSAT ETF VSAT Risks [Member] Indirect Investment in VSAT Risk [Member] VSAT Trading Risk [Member] VSAT Performance Risk [Member] VSAT Operational and Regulatory Risk [Member] Communications Equipment Industry Risk [Member] Defiance Daily Target 2X Long ASTS ETF [Member] Defiance Daily Target 2X Long BKSY ETF [Member] Defiance Daily Target 2X Long COHR ETF [Member] Defiance Daily Target 2X Long ENVX ETF [Member] Defiance Daily Target 2X Long FRSH ETF [Member] Defiance Daily Target 2X Long GSAT ETF [Member] Defiance Daily Target 2X Long JD ETF [Member] Defiance Daily Target 2X Long LEU ETF [Member] Defiance Daily Target 2X Long OUST ETF [Member] Defiance Daily Target 2X Long RDW ETF [Member] Defiance Daily Target 2X Long RVMD ETF [Member] Defiance Daily Target 2X Long STX ETF [Member] Defiance Daily Target 2X Long VSAT ETF [Member] Defiance Daily Target 2X Long ASTS ETF. Defiance Daily Target 2X Long ASTS ETF. Defiance Daily Target 2X Long BKSY ETF. Defiance Daily Target 2X Long BKSY ETF. Defiance Daily Target 2X Long COHR ETF. Defiance Daily Target 2X Long COHR ETF. Defiance Daily Target 2X Long ENVX ETF. Defiance Daily Target 2X Long ENVX ETF. Defiance Daily Target 2X Long FRSH ETF. Defiance Daily Target 2X Long FRSH ETF. Defiance Daily Target 2X Long GSAT ETF. Defiance Daily Target 2X Long GSAT ETF. Defiance Daily Target 2X Long JD ETF. Defiance Daily Target 2X Long JD ETF. Defiance Daily Target 2X Long LEU ETF. Defiance Daily Target 2X Long LEU ETF. Defiance Daily Target 2X Long OUST ETF. Defiance Daily Target 2X Long OUST ETF. Defiance Daily Target 2X Long RDW ETF. Defiance Daily Target 2X Long RDW ETF. Defiance Daily Target 2X Long RVMD ETF. Defiance Daily Target 2X Long RVMD ETF. Defiance Daily Target 2X Long STX ETF. Defiance Daily Target 2X Long STX ETF. Defiance Daily Target 2X Long VSAT ETF. Defiance Daily Target 2X Long VSAT 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. 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. Rebalancing Risk. Fixed Income Securities Risk. Intra-Day Investment Risk. Counterparty Risk. Options Contracts. Swap Agreements. Derivatives Risk. Leverage Risk. Daily CorrelationTracking Risk. Compounding and Market Volatility Risk. Single Issuer Risk. Communications Equipment Industry Risk. Technology Sector Risk. VSAT Operational and Regulatory Risk. VSAT Performance Risk. VSAT Trading Risk. Indirect Investment in VSAT Risk. VSAT Risks. Technology Hardware Storage & Peripherals Industry Risk. Key Customer Risks. STX Operational and Regulatory Risk. STX Performance Risk. STX Trading Risk. Indirect Investment in STX Risk. STX Risks. Pharmaceutical Company Risk. Biotechnology Company Risk. Health Care Sector Risk. RDW Operational and Regulatory Risk. RDW Performance Risk. RVMD Trading Risk. Indirect Investment in RVMD Risk. RVMD Risks. Aerospace & Defense Industry Risks. RDW Trading Risk. Indirect Investment in RDW Risk. RDW Risks. Electronic Equipment Instruments and Components Industry Risk. OUST Operational and Regulatory Risk. OUST Performance Risk. OUST Trading Risk. Indirect Investment in OUST Risk. OUST Risks. Oil Gas and Consumable Fuels Industry Risk. LEU Operations and Regulatory Risk. Uranium and Nuclear Fuel Supply Risk. LEU Performance Risk. LEU Trading Risk. Indirect Investment in LEU Risk. LEU Risks. Internet & Direct Marketing Retail Risk. Holding Foreign Companies Accountable Act (HFCAA) Risks. JD Business Structural Risks. JD Operations and Regulatory Risk. JD Performance Risk. JD Trading Risk. Indirect Investment in JD Risk. JD Risks. Communication Services Sector Risk. GSAT Customer Concentration Risk. GSAT Operations and Regulatory Risk. GSAT Performance Risk. GSAT Trading Risk. Indirect Investment in GSAT Risk. Gsat Risks. Software Industry Risk. FRSH Operations and Regulatory Risk. FRSH Performance Risk. FRSH Trading Risk. Indirect Investment in FRSH Risk. FRSH Risks. Electrical Equipment Industry Risk. Battery Market Competition Risk. ENVX Operations and Regulatory Risk. ENVX Performance Risk. ENVX Trading Risk. Indirect Investment in ENVX Risk. ENVX Risks. COHR Restructuring Risk. COHR Operational and Regulatory Risk. COHR Performance Risk. COHR Trading Risk. Indirect Investment in COHR Risk. COHR Risks. CommercialProfessional Services Industry Risk. Key Customers Risk. BKSY Performance Risk. BKSY Trading Risk. Indirect Investment in BKSY Risk. BKSY Risks. ASTS Operations Regulatory and Key Person Risk. ASTS Investing Risk. ASTS Performance Risk. ASTS Trading Risk. Indirect Investment in ASTS Risk. ASTS Risks. BKSY Operational and Regulatory Risk.