MayTech Global Growth ETF Technology Sector Risk [Member] Communications Services Sector [Member] Equity Market Risk [Member] Growth Stock Investment Risk [Member] Sector Risks [Member] Foreign Securities Risk [Member] Depositary Receipts Risks [Member] Currency Exchange Rate Risk [Member] Emerging Markets Risk [Member] Economic and Market Risk [Member] ETF Risks [Member] Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] Costs of Buying or Selling Shares [Member] Shares May Trade at Prices Other Than NAV [Member] Trading [Member] Management Risk [Member] Market Capitalization Risks [Member] Large-Capitalization Investing [Member] Mid-Capitalization Investing [Member] Small-Capitalization Investing [Member] New Fund Risk [Member] Operational Risk [Member] MayTech Global Growth ETF [Member] MayTech Global Growth ETF. MayTech Global Growth ETF [Member] Operational Risk. New Fund Risk. Small-Capitalization Investing. Mid-Capitalization Investing. Large-Capitalization Investing. Market Capitalization Risks. Management Risk. Trading. Shares May Trade at Prices Other Than NAV. Costs of Buying or Selling Shares. Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. ETF Risks. Economic and Market Risk. Emerging Markets Risk. Currency Exchange Rate Risk. Depositary Receipts Risks. Foreign Securities Risk. Sector Risks. Growth Stock Investment Risk. Equity Market Risk. Communications Services Sector. Technology Sector Risk.