Essential 40 Stock ETF Equity Securities Risk [Member] Early Close/Trading Halt Risk [Member] ETF Structure Risk [Member] Authorized Participant Risk [Member] Not Individually Redeemable [Member] Trading Issues [Member] Market Price Variance Risk [Member] Future Risk [Member] Large-Capitalization Securities Risk [Member] Management Risk [Member] Market Risk [Member] Options Risk [Member] Essential 40 Stock ETF S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes) S&P 500 Equal Weight Total Return Index (reflects no deduction for fees, expenses or taxes) Essential 40 Stock Index Total Return (reflects no deduction for fees, expenses or taxes) Essential 40 Stock ETF [Default Label]