110002 - Disclosure - Equity Focus ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 110003 - Disclosure - Equity Focus ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 110004 - Disclosure - Equity Focus ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 110005 - Disclosure - Equity Focus ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 110006 - Disclosure - Equity Focus ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 120010 - Disclosure - Equity Focus ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 120020 - Disclosure - Equity Focus ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 120030 - Disclosure - Equity Focus ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 120040 - Disclosure - Equity Focus ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 120045 - Disclosure - Equity Focus ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 120050 - Disclosure - Equity Focus ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120060 - Disclosure - Equity Focus ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120070 - Disclosure - Equity Focus ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 110000 - Disclosure - Equity Focus ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 110001 - Disclosure - Equity Focus ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 210002 - Disclosure - Fundamental Data Science Large Growth ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 210003 - Disclosure - Fundamental Data Science Large Growth ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 210004 - Disclosure - Fundamental Data Science Large Growth ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 210005 - Disclosure - Fundamental Data Science Large Growth ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 210006 - Disclosure - Fundamental Data Science Large Growth ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 220010 - Disclosure - Fundamental Data Science Large Growth ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 220020 - Disclosure - Fundamental Data Science Large Growth ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 220030 - Disclosure - Fundamental Data Science Large Growth ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 220040 - Disclosure - Fundamental Data Science Large Growth ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 220045 - Disclosure - Fundamental Data Science Large Growth ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 220050 - Disclosure - Fundamental Data Science Large Growth ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220060 - Disclosure - Fundamental Data Science Large Growth ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220070 - Disclosure - Fundamental Data Science Large Growth ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 210000 - Disclosure - Fundamental Data Science Large Growth ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 210001 - Disclosure - Fundamental Data Science Large Growth ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 310002 - Disclosure - Fundamental Data Science Large Value ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 310003 - Disclosure - Fundamental Data Science Large Value ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 310004 - Disclosure - Fundamental Data Science Large Value ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 310005 - Disclosure - Fundamental Data Science Large Value ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 310006 - Disclosure - Fundamental Data Science Large Value ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 320010 - Disclosure - Fundamental Data Science Large Value ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 320020 - Disclosure - Fundamental Data Science Large Value ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 320030 - Disclosure - Fundamental Data Science Large Value ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 320040 - Disclosure - Fundamental Data Science Large Value ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 320045 - Disclosure - Fundamental Data Science Large Value ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 320050 - Disclosure - Fundamental Data Science Large Value ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320060 - Disclosure - Fundamental Data Science Large Value ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320070 - Disclosure - Fundamental Data Science Large Value ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 310000 - Disclosure - Fundamental Data Science Large Value ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 310001 - Disclosure - Fundamental Data Science Large Value ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 410002 - Disclosure - Preferred and Income Securities ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 410003 - Disclosure - Preferred and Income Securities ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 410004 - Disclosure - Preferred and Income Securities ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 410005 - Disclosure - Preferred and Income Securities ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 410006 - Disclosure - Preferred and Income Securities ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 420010 - Disclosure - Preferred and Income Securities ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 420020 - Disclosure - Preferred and Income Securities ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 420030 - Disclosure - Preferred and Income Securities ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 420040 - Disclosure - Preferred and Income Securities ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 420045 - Disclosure - Preferred and Income Securities ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 420050 - Disclosure - Preferred and Income Securities ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420060 - Disclosure - Preferred and Income Securities ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420070 - Disclosure - Preferred and Income Securities ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 410000 - Disclosure - Preferred and Income Securities ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 410001 - Disclosure - Preferred and Income Securities ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 510002 - Disclosure - Small and Mid Cap Enhanced Equity ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 510003 - Disclosure - Small and Mid Cap Enhanced Equity ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 510004 - Disclosure - Small and Mid Cap Enhanced Equity ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 510005 - Disclosure - Small and Mid Cap Enhanced Equity ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 510006 - Disclosure - Small and Mid Cap Enhanced Equity ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 520010 - Disclosure - Small and Mid Cap Enhanced Equity ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 520020 - Disclosure - Small and Mid Cap Enhanced Equity ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 520030 - Disclosure - Small and Mid Cap Enhanced Equity ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 520040 - Disclosure - Small and Mid Cap Enhanced Equity ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 520045 - Disclosure - Small and Mid Cap Enhanced Equity ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 520050 - Disclosure - Small and Mid Cap Enhanced Equity ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520060 - Disclosure - Small and Mid Cap Enhanced Equity ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520070 - Disclosure - Small and Mid Cap Enhanced Equity ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 510000 - Disclosure - Small and Mid Cap Enhanced Equity ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 510001 - Disclosure - Small and Mid Cap Enhanced Equity ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 610002 - Disclosure - Active Growth ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 610003 - Disclosure - Active Growth ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 610004 - Disclosure - Active Growth ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 610005 - Disclosure - Active Growth ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 610006 - Disclosure - Active Growth ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 620010 - Disclosure - Active Growth ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 620020 - Disclosure - Active Growth ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 620030 - Disclosure - Active Growth ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 620040 - Disclosure - Active Growth ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 620045 - Disclosure - Active Growth ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 620050 - Disclosure - Active Growth ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620060 - Disclosure - Active Growth ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620070 - Disclosure - Active Growth ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 610000 - Disclosure - Active Growth ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 610001 - Disclosure - Active Growth ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 710002 - Disclosure - Active Small Cap Value ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 710003 - Disclosure - Active Small Cap Value ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 710004 - Disclosure - Active Small Cap Value ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 710005 - Disclosure - Active Small Cap Value ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 710006 - Disclosure - Active Small Cap Value ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 720010 - Disclosure - Active Small Cap Value ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 720020 - Disclosure - Active Small Cap Value ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 720030 - Disclosure - Active Small Cap Value ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 720040 - Disclosure - Active Small Cap Value ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 720045 - Disclosure - Active Small Cap Value ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 720050 - Disclosure - Active Small Cap Value ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720060 - Disclosure - Active Small Cap Value ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720070 - Disclosure - Active Small Cap Value ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 710000 - Disclosure - Active Small Cap Value ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 710001 - Disclosure - Active Small Cap Value ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 810002 - Disclosure - Active Value ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 810003 - Disclosure - Active Value ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 810004 - Disclosure - Active Value ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 810005 - Disclosure - Active Value ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 810006 - Disclosure - Active Value ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 820010 - Disclosure - Active Value ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 820020 - Disclosure - Active Value ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 820030 - Disclosure - Active Value ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 820040 - Disclosure - Active Value ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 820045 - Disclosure - Active Value ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 820050 - Disclosure - Active Value ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820060 - Disclosure - Active Value ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820070 - Disclosure - Active Value ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 810000 - Disclosure - Active Value ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 810001 - Disclosure - Active Value ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 910002 - Disclosure - Equity Premium Income ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 910003 - Disclosure - Equity Premium Income ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 910004 - Disclosure - Equity Premium Income ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 910005 - Disclosure - Equity Premium Income ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 910006 - Disclosure - Equity Premium Income ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 920010 - Disclosure - Equity Premium Income ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 920020 - Disclosure - Equity Premium Income ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 920030 - Disclosure - Equity Premium Income ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 920040 - Disclosure - Equity Premium Income ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 920045 - Disclosure - Equity Premium Income ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 920050 - Disclosure - Equity Premium Income ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920060 - Disclosure - Equity Premium Income ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920070 - Disclosure - Equity Premium Income ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 910000 - Disclosure - Equity Premium Income ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 910001 - Disclosure - Equity Premium Income ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1010002 - Disclosure - Fundamental Data Science Large Core ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1010003 - Disclosure - Fundamental Data Science Large Core ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1010004 - Disclosure - Fundamental Data Science Large Core ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1010005 - Disclosure - Fundamental Data Science Large Core ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1010006 - Disclosure - Fundamental Data Science Large Core ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1020010 - Disclosure - Fundamental Data Science Large Core ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1020020 - Disclosure - Fundamental Data Science Large Core ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1020030 - Disclosure - Fundamental Data Science Large Core ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1020040 - Disclosure - Fundamental Data Science Large Core ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1020045 - Disclosure - Fundamental Data Science Large Core ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1020050 - Disclosure - Fundamental Data Science Large Core ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020060 - Disclosure - Fundamental Data Science Large Core ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020070 - Disclosure - Fundamental Data Science Large Core ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1010000 - Disclosure - Fundamental Data Science Large Core ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1010001 - Disclosure - Fundamental Data Science Large Core ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1110002 - Disclosure - Fundamental Data Science Mid Core ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1110003 - Disclosure - Fundamental Data Science Mid Core ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1110004 - Disclosure - Fundamental Data Science Mid Core ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1110005 - Disclosure - Fundamental Data Science Mid Core ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1110006 - Disclosure - Fundamental Data Science Mid Core ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1120010 - Disclosure - Fundamental Data Science Mid Core ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1120020 - Disclosure - Fundamental Data Science Mid Core ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1120030 - Disclosure - Fundamental Data Science Mid Core ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1120040 - Disclosure - Fundamental Data Science Mid Core ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1120045 - Disclosure - Fundamental Data Science Mid Core ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1120050 - Disclosure - Fundamental Data Science Mid Core ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120060 - Disclosure - Fundamental Data Science Mid Core ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120070 - Disclosure - Fundamental Data Science Mid Core ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1110000 - Disclosure - Fundamental Data Science Mid Core ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1110001 - Disclosure - Fundamental Data Science Mid Core ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1210002 - Disclosure - Fundamental Data Science Small Core ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1210003 - Disclosure - Fundamental Data Science Small Core ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1210004 - Disclosure - Fundamental Data Science Small Core ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1210005 - Disclosure - Fundamental Data Science Small Core ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1210006 - Disclosure - Fundamental Data Science Small Core ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1220010 - Disclosure - Fundamental Data Science Small Core ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1220020 - Disclosure - Fundamental Data Science Small Core ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1220030 - Disclosure - Fundamental Data Science Small Core ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1220040 - Disclosure - Fundamental Data Science Small Core ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1220045 - Disclosure - Fundamental Data Science Small Core ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1220050 - Disclosure - Fundamental Data Science Small Core ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220060 - Disclosure - Fundamental Data Science Small Core ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220070 - Disclosure - Fundamental Data Science Small Core ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1210000 - Disclosure - Fundamental Data Science Small Core ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1210001 - Disclosure - Fundamental Data Science Small Core ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1310002 - Disclosure - Nasdaq Equity Premium Income ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1310003 - Disclosure - Nasdaq Equity Premium Income ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1310004 - Disclosure - Nasdaq Equity Premium Income ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1310005 - Disclosure - Nasdaq Equity Premium Income ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1310006 - Disclosure - Nasdaq Equity Premium Income ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1320010 - Disclosure - Nasdaq Equity Premium Income ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1320020 - Disclosure - Nasdaq Equity Premium Income ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1320030 - Disclosure - Nasdaq Equity Premium Income ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1320040 - Disclosure - Nasdaq Equity Premium Income ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1320045 - Disclosure - Nasdaq Equity Premium Income ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1320050 - Disclosure - Nasdaq Equity Premium Income ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1320060 - Disclosure - Nasdaq Equity Premium Income ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1320070 - Disclosure - Nasdaq Equity Premium Income ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1310000 - Disclosure - Nasdaq Equity Premium Income ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1310001 - Disclosure - Nasdaq Equity Premium Income ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1410002 - Disclosure - U.S. Research Enhanced Large Cap ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1410003 - Disclosure - U.S. Research Enhanced Large Cap ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1410004 - Disclosure - U.S. Research Enhanced Large Cap ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1410005 - Disclosure - U.S. Research Enhanced Large Cap ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1410006 - Disclosure - U.S. Research Enhanced Large Cap ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1420010 - Disclosure - U.S. Research Enhanced Large Cap ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1420020 - Disclosure - U.S. Research Enhanced Large Cap ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1420030 - Disclosure - U.S. Research Enhanced Large Cap ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1420040 - Disclosure - U.S. Research Enhanced Large Cap ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1420045 - Disclosure - U.S. Research Enhanced Large Cap ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1420050 - Disclosure - U.S. Research Enhanced Large Cap ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1420060 - Disclosure - U.S. Research Enhanced Large Cap ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1420070 - Disclosure - U.S. Research Enhanced Large Cap ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1410000 - Disclosure - U.S. Research Enhanced Large Cap ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1410001 - Disclosure - U.S. Research Enhanced Large Cap ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1510002 - Disclosure - U.S. Tech Leaders ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1510003 - Disclosure - U.S. Tech Leaders ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1510004 - Disclosure - U.S. Tech Leaders ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1510005 - Disclosure - U.S. Tech Leaders ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1510006 - Disclosure - U.S. Tech Leaders ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1520010 - Disclosure - U.S. Tech Leaders ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1520020 - Disclosure - U.S. Tech Leaders ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1520030 - Disclosure - U.S. Tech Leaders ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1520040 - Disclosure - U.S. Tech Leaders ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1520045 - Disclosure - U.S. Tech Leaders ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1520050 - Disclosure - U.S. Tech Leaders ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1520060 - Disclosure - U.S. Tech Leaders ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1520070 - Disclosure - U.S. Tech Leaders ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1510000 - Disclosure - U.S. Tech Leaders ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1510001 - Disclosure - U.S. Tech Leaders ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink Equity Focus ETF S000079812 [Member] ETF C000241195 [Member] S&P 500 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Equity Market Risk [Member] General Market Risk [Member] Strategy Risk [Member] Large Cap Company Risk [Member] Smaller Company Risk [Member] Foreign Securities Risk [Member] Derivatives Risk [Member] Significant Holdings Risk [Member] Industry and Sector Focus Risk [Member] Technology Sector Risk [Member] ETF Shares Trading Risk [Member] Authorized Participant Concentration Risk [Member] Fundamental Data Science Large Growth ETF S000101505 [Member] C000271704 [Member] RUSSELL 1000 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] RUSSELL 1000 GROWTH INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Data Science Investment Approach Risk [Member] Growth Investing Risk [Member] Communication Services Sector Risk [Member] Fundamental Data Science Large Value ETF S000090418 [Member] C000257465 [Member] RUSSELL 1000 VALUE INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Value Investing Risk [Member] Financials Sector Risk [Member] Real Estate Securities Risk [Member] Preferred and Income Securities ETF S000101506 [Member] C000271705 [Member] BLOOMBERG US AGGREGATE INDEX (TOTAL RETURN GROSS)(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] ICE BOFA US ALL CAPITAL SECURITIES INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] 75%ICE BOFA US ALL CAPITAL SECURITIES INDEX/25%BLOOMBERG DEVELOPED MKT. USD CONTINGENT CAPITAL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Interest Rate Risk [Member] Credit Risk [Member] Preferred Securities Risk [Member] Hybrid Preferred Securities Risk [Member] Extension Risk [Member] Convertible Securities Risk [Member] High Yield Securities Risk [Member] REITs Risk [Member] Currency Risk [Member] Distribution Risk [Member] Concentration Risk [Member] MLP Risk [Member] Zero Coupon Pay In Kind and Deferred Payment Securities Risk [Member] Privately Placed Securities Risk [Member] Trust Preferred Securities Risk [Member] Options Risk [Member] Foreign Issuer Risk [Member] Geographic Focus Risk [Member] Sovereign Debt Risk [Member] European Market Risk [Member] Government Securities Risk [Member] Prepayment Risk [Member] Risk Associated with the Fund Holding Cash Money Market Instruments and Other Short Term Investments [Member] Cash Transactions Risk [Member] Small and Mid Cap Enhanced Equity ETF S000074055 [Member] C000231438 [Member] S&P COMPOSITE 1500 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] S&P 1000 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Industrials Sector Risk [Member] Active Growth ETF S000077070 [Member] C000237212 [Member] Active Small Cap Value ETF S000079652 [Member] C000240858 [Member] RUSSELL 3000 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] RUSSELL 2000 VALUE INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Active Value ETF S000072931 [Member] C000229631 [Member] Depositary Receipts Risk [Member] High Portfolio Turnover Risk [Member] Equity Premium Income ETF S000068402 [Member] C000218810 [Member] ICE BOFA 3-MONTH US TREASURY BILL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Equity Linked Notes Risk [Member] Covered Call Strategy Risk [Member] Fundamental Data Science Large Core ETF S000086049 [Member] C000251449 [Member] Industry Concentration Risk [Member] Fundamental Data Science Mid Core ETF S000086050 [Member] C000251450 [Member] RUSSELL MIDCAP INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Mid Cap Company Risk [Member] Fundamental Data Science Small Core ETF S000086051 [Member] C000251451 [Member] RUSSELL 2000 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Smaller Cap Company Risk [Member] Healthcare Sector Risk [Member] Nasdaq Equity Premium Income ETF S000076132 [Member] C000235594 [Member] NASDAQ-100 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] U.S. Research Enhanced Large Cap ETF S000090403 [Member] C000257449 [Member] U.S. Tech Leaders ETF S000080536 [Member] C000243013 [Member] RUSSELL 1000 EQUAL WEIGHT TECHNOLOGY INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] Industry Focus Risk [Member]