Defiance Daily Target 2X Long HQ ETF HQ Risks [Member] Indirect Investment in HQ Risk [Member] HQ Trading Risk [Member] HQ Performance Risk [Member] New Public Company and Stock Volatility Risks [Member] Software Industry Risk [Member] Computer Programming Company Risks [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] Intraday 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 JBL ETF JBL Risks [Member] Indirect Investment in JBL Risk [Member] JBL Trading Risk [Member] JBL Performance Risk [Member] Electronic Equipment, Instruments and Components Industry Risk [Member] Regulatory and Compliance Risk [Member] Defiance Daily Target 2X Long MXL ETF MXL Risks [Member] Indirect Investment in MXL Risk [Member] MXL Trading Risk [Member] MXL Performance Risk [Member] Semiconductor Industry Risks [Member] Defiance Daily Target 2X Long P ETF P Risks [Member] Indirect Investment in P Risk [Member] P Trading Risk [Member] P Performance Risk [Member] Technology Sector Risk [Member] Technology Hardware, Storage & Peripherals Industry Risk [Member] Defiance Daily Target 2X Long STM ETF STM Risks [Member] Indirect Investment in STM Risk [Member] STM Trading Risk [Member] STM Performance Risk [Member] Defiance Daily Target 2X Long SYM ETF SYM Risks [Member] Indirect Investment in SYM Risk [Member] SYM Trading Risk [Member] SYM Performance Risk [Member] Machinery Industry Risks [Member] Defiance Daily Target 2X Long HQ ETF [Member] Defiance Daily Target 2X Long JBL ETF [Member] Defiance Daily Target 2X Long MXL ETF [Member] Defiance Daily Target 2X Long P ETF [Member] Defiance Daily Target 2X Long STM ETF [Member] Defiance Daily Target 2X Long SYM ETF [Member] Defiance Daily Target 2X Long HQ ETF Defiance Daily Target 2X Long HQ ETF [Member] Defiance Daily Target 2X Long JBL ETF Defiance Daily Target 2X Long JBL ETF [Member] Defiance Daily Target 2X Long MXL ETF Defiance Daily Target 2X Long MXL ETF [Member] Defiance Daily Target 2X Long P ETF Defiance Daily Target 2X Long P ETF [Member] Defiance Daily Target 2X Long STM ETF Defiance Daily Target 2X Long STM ETF [Member] Defiance Daily Target 2X Long SYM ETF Defiance Daily Target 2X Long SYM ETF [Member] Operational Risk. Trading Halt Risk. New Fund Risk. Money Market Instrument Risk. Liquidity Risks. 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. Intraday Investment Risk. Counterparty Risk. Options Contracts. Swap Agreements. Derivatives Risk. Leverage Risk. Daily Correlation/Tracking Risk. Compounding and Market Volatility Risk. Single Issuer Risk. Machinery Industry Risks. SYM Performance Risk. SYM Trading Risk. Indirect Investment in Sym Risk. Sym Risks. Stm Performance Risk. Stm Trading Risk. Indirect Investment In Stm Risk. Stm Risks. P Performance Risk. Technology Hardware, Storage & Peripherals Industry Risk. Technology Sector Risk. P Trading Risk. Indirect Investment In P Risk. P Risks. MXL Performance Risk. MXL Trading Risk. Indirect Investment In MXL Risk. MXL Risks. JBL Performance Risk. JBL Trading Risk. Indirect Investment In JBL Risk. JBL Risks. Software Industry Risk. New Public Company And Stock Volatility Risks. HQ Performance Risk. HQ Trading Risk. Indirect Investment In HQ Risk. HQ Risks. Computer Programming Company Risks. U.S. Government and U.S. Agency Obligations Risk. Tax Risk. Electronic Equipment, Instruments and Components Industry Risk. Regulatory and Compliance Risk. Semiconductor Industry Risks.