XFUNDSTM 1-3 Month BOX ETF Derivatives Risk [Member] Options Contracts [Member] Box Spread Risk [Member] Counterparty Risk [Member] Tax Risk [Member] Low Short-Term Interest Rates Risk [Member] Cash and Cash Equivalents Risk [Member] Economic and Market 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] High Portfolio Turnover Risk [Member] Inflation Risk [Member] Large Shareholder and Large-Scale Redemption Risk [Member] Liquidity Risk [Member] Management Risk [Member] New Fund Risk [Member] Operational Risk [Member] XFUNDSTM 1-3 Month BOX ETF [Member] XFUNDSTM 1-3 Month BOX ETF. XFUNDSTM 1-3 Month BOX ETF. Operational Risk. New Fund Risk. Management Risk. Liquidity Risk. Large Shareholder and Large-Scale Redemption Risk. Inflation Risk. High Portfolio Turnover 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. Economic and Market Risk. Cash and Cash Equivalents Risk. Low Short-Term Interest Rates Risk. Tax Risk. Counterparty Risk. Box Spread Risk. Options Contracts. Derivatives Risk.