The Future Fund Long/Short ETF Active Management Risk [Member] Authorized Participant Risk [Member] Company-Specific Risk [Member] Convertible Securities Risk [Member] Depositary Receipts Risk [Member] Derivatives Risk [Member] Futures Contracts [Member] Hedging Risk [Member] Options [Member] Swaps [Member] Early Close/Trading Halt Risk [Member] Emerging Markets Risk [Member] Equity Securities Risk [Member] ETF Structure Risk [Member] Not Individually Redeemable [Member] Trading Issues [Member] Market Price Variance Risk [Member] Foreign Securities Risk [Member] Investing in Other ETFs Risk [Member] Issuer Risk [Member] Large Capitalization Company Risk [Member] Leverage Risk [Member] Market Risk [Member] Mid Cap Securities Risk [Member] Short Sales Risk [Member] Small Cap and Emerging Growth Securities Risk [Member] One Global ETF Shorting Risk [Member] The Future Fund Long/Short ETF One Global ETF S&P 500 Total Return Index MSCI All Country World Index (AWCI) Russell 3000 Growth Index The Future Fund Long/Short ETF [Default Label] One Global ETF [Default Label]