Geopolitical Risk Member Geopolitical Risk Member Emerging Technologies Investment Risk Member Emerging Technologies Investment Risk Member Emerging Markets Risk Member Emerging Markets Risk Member Passive Investment Risk Member Passive Investment Risk Member BlueStar Quantum Computing and Machine Learning Index® (reflects no deduction for fees, expenses, or taxes) BlueStar Quantum Computing and Machine Learning Index® (reflects no deduction for fees, expenses, or taxes) Market Capitalization Risk, Small-Capitalization Investing Risk Member Market Capitalization Risk, Small-Capitalization Investing Risk Member ETF Risks, Trading Risk Member ETF Risks, Trading Risk Member Defiance Drone and Modern Warfare ETF Class S000095495 Defiance Drone and Modern Warfare ETF C000264219 Defiance Drone and Modern Warfare ETF Defiance Space and Connective Tech ETF S000064804 Defiance Space and Connective Tech ETF previously Defiance Space and Connective Tech ETF Foreign Securities Risk Member Foreign Securities Risk Member Tracking Error Risk Member Tracking Error Risk Member Sector Risk Member Sector Risk Member Market Capitalization Risk, Mid-Capitalization Investing Risk Member Market Capitalization Risk, Mid-Capitalization Investing Risk Member ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member Geographic Investment Risk Member Geographic Investment Risk Member Connective Technology Investment Risk Member Connective Technology Investment Risk Member Concentration Risk, Semiconductors Industry Risk Member Concentration Risk, Semiconductors Industry Risk Member Concentration Risk, Satellite Communications And Space Industry Risk Member Concentration Risk, Satellite Communications And Space Industry Risk Member Aoerospace And Defense Companies Risk Member Aoerospace And Defense Companies Risk Member Defiance Space and Connective Tech ETF Class Defiance Space and Connective Tech ETF Class C000209826 Quantum Computing And Machine Learning Investment Risk Member Quantum Computing And Machine Learning Investment Risk Member Depositary Receipt Risk Member Depositary Receipt Risk Member Securities Lending Risk Member Securities Lending Risk Member BlueStar Connective Technologies Index (reflects no deduction for fees, expenses, or taxes) BlueStar Connective Technologies Index (reflects no deduction for fees, expenses, or taxes) REIT Investment Risk Member REIT Investment Risk Member S&P 500® TR Index (reflects no deduction for fees, expenses or taxes) S&P 500® TR Index (reflects no deduction for fees, expenses or taxes) Market Capitalization Risk Member Market Capitalization Risk Member Drone Companies Risk Member Drone Companies Risk Member Defiance Quantum ETF Defiance Quantum ETF, S000062478 ETF Risks Member ETF Risks Member Defiance Drone and Modern Warfare ETF S000095495 Defiance Drone and Modern Warfare ETF C000264219 Defiance Drone and Modern Warfare ETF Capital Controls And Sanctions Risk Member Capital Controls And Sanctions Risk Member Sector Risk, Communications Services Sector Risk Member Sector Risk, Communications Services Sector Risk Member Index Methodology Risk Member Index Methodology Risk Member Defiance Quantum ETF Class Defiance Quantum ETF, C000202668, QTUM Concentration Risk, Communications Equipment Industry Risk Member Concentration Risk, Communications Equipment Industry Risk Member ETF Risks, Costs Of Buying Or Selling Shares Risk Member ETF Risks, Costs Of Buying Or Selling Shares Risk Member Index Provider Risk Member Index Provider Risk Member Market Capitalization Risk, Large-Capitalization Investing Risk Member Market Capitalization Risk, Large-Capitalization Investing Risk Member IPO Risk Member IPO Risk Member Currency Exchange Rate Risk Member Currency Exchange Rate Risk Member Concentration Risk Member Concentration Risk Member Cybersecurity Companies Risk Member Cybersecurity Companies Risk Member Sector Risk, Information Technology Sector Risk Member Sector Risk, Information Technology Sector Risk Member New Fund Risk Member New Fund Risk Member Sector Risk, Industrials Sector Risk Member Sector Risk, Industrials Sector Risk Member Equity Market Risk Member Equity Market Risk Member