Defiance Daily Target 2X Long AEO ETF AEO Risks [Member] Indirect Investment in AEO Risk [Member] AEO Trading Risk [Member] AEO Performance Risk [Member] Specialty Retail Industry Risks [Member] International Operations Risk [Member] Reputation Risk [Member] Changing Technology Risk [Member] Risk Related to Intellectual Property [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 BLSH ETF BLSH Risks [Member] Indirect Investment in BLSH Risk [Member] BLSH Trading Risk [Member] BLSH Performance Risk [Member] Software Industry Risks [Member] Digital Assets Business Strategy Risk [Member] Regulatory Risk [Member] Digital Assets Risk [Member] Operating Expenses Risk [Member] Indebtedness Risk [Member] Cyber Risk [Member] Foreign Issuer Risk [Member] Currency Risk [Member] Foreign Securities Risk [Member] Defiance Daily Target 2X Long DASH ETF DASH Risks [Member] Indirect Investment in DASH Risk [Member] DASH Trading Risk [Member] DASH Performance Risk [Member] Hotels, Restaurants and Leisure Industry Risks [Member] Limited Operating History Risk [Member] Operating Loss Risk [Member] Technology Risk [Member] Defiance Daily Target 2X Long MRNA ETF MRNA Risks [Member] Indirect Investment in MRNA Risk [Member] MRNA Trading Risk [Member] MRNA Performance Risk [Member] Biotechnology Industry Risk [Member] Product Uncertainty Risk [Member] Manufacturing Risk [Member] Newer Fund Risk [Member] Defiance Daily Target 2X Long AEO ETF [Member] Defiance Daily Target 2X Long BLSH ETF [Member] Defiance Daily Target 2X Long DASH ETF [Member] Defiance Daily Target 2X Long MRNA ETF [Member] Defiance Daily Target 2X Long AEO ETF. Defiance Daily Target 2X Long AEO ETF [Member]. Defiance Daily Target 2X Long BLSH ETF. Defiance Daily Target 2X Long BLSH ETF [Member]. Defiance Daily Target 2X Long DASH ETF. Defiance Daily Target 2X Long DASH ETF [Member]. Defiance Daily Target 2X Long MRNA ETF. Defiance Daily Target 2X Long MRNA ETF [Member]. Tax Risk. U.S. Government and U.S. Agency Obligations Risk. Operational Risk. Trading Halt Risk. Newer 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. Technology Hardware, Storage & Peripherals Industry Risk. General Risks. Financial Risks. Legal and Regulatory Risks. Strategic and Industry Risks. Operational and Execution Risk. Delisting Risk. SMCI Performance Risk. SMCI Trading Risk. Indirect Investment in SMCI Risk. SMCI Risks. Semiconductor Industry Risks. Financial and Stock-Related Risks. Legal, Environmental, and Market Risks. Technological and Cybersecurity Risks. Business and Operational Risk. AVGO Performance Risk. AVGO Trading Risk. Indirect Investment in AVGO Risk. AVGO Risks. Government Regulation and Litigation Risks. International Business Risks. Operations Risks. Intellectual Property Risks. NVO Performance Risk. NVO Trading Risk. Indirect Investment in NVO Nordisk Risk. NVO Risks. Bitcoin Risk. Software Industry Risk. MSTR Performance Risk. MSTR Trading Risk. Indirect Investment in MSTR Risk. MSTR Risks. LLY Performance Risk. LLY Trading Risk. Indirect Investment in LLY Risk. LLY Risks. Foreign Securities Risk. Foreign Market and Trading Risk. Depositary Receipts Risk. Currency Risk. Foreign Investment Risk. Autonomous Vehicle Technologies Risk. Rideshare Company Risk. Regulatory Risk. Driver Classification Risk. UBER Trading Risk. Indirect Investment in UBER Risk. UBER Risks. Foreign Private Issuer Risk. Limited Customer Risk. Softbank Risk. ARM Trading Risk. Indirect Investment in ARM Risk. ARM Risks. Information Technology and Networking Infrastructure Risk. ANET Performance Risk. ANET Trading Risk. Indirect Investment in ANET Risk. ANET Risks. New Fund Risk. UBER Performance Risk. Semiconductor Industry Risks. ARM Performance Risk. Communications Equipment Industry Risks. S&P 500® Total Return Index (reflects no deduction for fees, expenses, or taxes) Liquidity Risks. Semiconductors & Semiconductor Equipment Industry Risks. Manufacturing and Supply Chain Risk. Intellectual Property Risk. Limited Operating History and Growth Risk. Indirect Investment in APLD Risk. APLD Trading Risk. APLD Performance Risk. IT Services Industry Risks. Business Concentration and Customer Risk. Supply Chain and Infrastructure Risk. Geographic Concentration and Environmental Risk. Regulatory and Cryptoasset Market Risk. Cybersecurity and Technology Risk. Competitive Risk. Market and Dilution Risk. AVAV Risks. Indirect Investment in AVAV Risk. AVAV Trading Risk. AVAV Performance Risk. Aerospace & Defense Industry Risks. AVAV Government Contract Risk. AVAV Market Adoption Risk. AVAV Technology and R&D Risk. AVAV Operational Risk. AVAV Regulatory and Legal Risk. AVAV Intellectual Property Risk. AVAV Volatility Risk. JOBY Risks. Indirect Investment in JOBY Risk. JOBY Trading Risk. JOBY Performance Risk. Airlines Industry Risk. Regulatory, Certification, and Government Risk. Market Adoption, Commercialization, and Infrastructure Risk. Production, Supply Chain, and Aircraft Reliability Risk. Competition, Financial Viability, and Growth Risk. Cybersecurity, Data Privacy, and Operational Talent Risk. KTOS Risks. Indirect Investment in KTOS Risk. KTOS Trading Risk. KTOS Performance Risk. Government Dependency and Contract Risk. Customer and Program Concentration Risk. Operational and Supply Chain Risk. KTOS Regulatory Risk. Cybersecurity and Compliance Risk. Financial and Leverage Risk. Intellectual Property and Limited Transparency Risk. Limited Operating History and Profitability Risk. Insurance Industry Risk. Capital Needs and Dilution Risk. NBIS Risks. Indirect Investment in NBIS Risk. NBIS Trading Risk. NBIS Performance Risk. Software Industry Risks. Early-Stage and Capital-Intensive Business Risk. Technology, Market Demand, and Competitive Risk. Operational, Infrastructure, and Supply Chain Risk. Regulatory, Legal, and Geopolitical Risk. Human Capital and Execution Risk. Financial, Governance, and Shareholder Risk. NVTS Risks. Indirect Investment in NVTS Risk. NVTS Trading Risk. NVTS Performance Risk. Customer Concentration and Demand Risk. Technology Adoption and Competitive Risk. Geopolitical and Trade Policy Risk. OSCR Risks. Indirect Investment in OSCR Risk. OSCR Trading Risk. OSCR Performance Risk. Regulatory and Policy Risk. Profitability and Medical Cost Management Risk. Technology and Cybersecurity Risk. Market Concentration and Competition Risk. Operational Execution and Scalability Risk. Reliance on Government Payments. PONY Risks. China-Related Risks. Regulatory and Legal Enforcement Risks. Restrictions on Capital Transfers and Dividends. Uncertainty in Licensing and Compliance. Indirect Investment in PONY Risk. PONY Trading Risk. PONY Performance Risk. Reliance on Regulatory Approvals for Autonomous Vehicle Operations. Technology and Safety Performance Risks. Dependence on Strategic Partnerships. Geopolitical Risk. RCAT Risks. Indirect Investment in RCAT Risk. RCAT Trading Risk. RCAT Performance Risk. Electronic Equipment, Instruments Industry Risk. Customer Concentration and Revenue Volatility. Product Development, Pricing, and Competitive Pressures. Product Defects and Warranty Liabilities. Operational and Supply Chain Disruptions. Regulatory, Contractual, and Acquisition Risks. RBRK Risks. Indirect Investment in RBRK Risk. RBRK Trading Risk. RBRK Performance Risk. Dependence on Continued Adoption of Data Security Solutions. Customer Retention and Subscription Growth Risk. Platform Performance and Cybersecurity Risk. Reliance on Third-Party Cloud Infrastructure. Competitive Market and Technological Change Risk. Defiance Daily Target 2X Long KTOS ETF [Member] APLD Risks. JOBY Business Risk. Pharmaceutical Industry Risks. Concentration Risk. Quantum Computing Industry Risk. ADRs Risk. Market Capitalization Risk. Large-Capitalization Investing. Mid-Capitalization Investing. ALAB Risks. Limited Operating History Risk. Indirect Investment in ALAB Risk. ALAB Trading Risk. ALAB Performance Risk. Customer Concentration Risk. Product Lifecycle and Technology Risk. Regulatory and Geopolitical Risk. Cybersecurity and Data Risk. Manufacturing Risk. Product Uncertainty Risk. Biotechnology Industry Risk. MRNA Performance Risk. MRNA Trading Risk. Indirect Investment in MRNA Risk. MRNA Risks. Technology Risk. Operating Loss Risk. Hotels, Restaurants and Leisure Industry Risks. DASH Trading Risk. Indirect Investment in DASH Risk. DASH Risks. Foreign Issuer Risk. Cyber Risk. Indebtedness Risk. Operating Expenses Risk. Digital Assets Risk. Digital Assets Business Strategy Risk. BLSH Performance Risk. BLSH Trading Risk. Indirect Investment in BLSH Risk. BLSH Risks. Risk Related to Intellectual Property. Changing Technology Risk. Reputation Risk. International Operations Risk. Specialty Retail Industry Risks. AEO Performance Risk. AEO Trading Risk. Indirect Investment in AEO Risk. AEO Risks. DASH Performance Risk.