Label	Element	Value
Abacus Flexible Bond Leaders ETF | Mount Vernon Liquid Assets Portfolio, LLC [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	32.50%
Abacus Flexible Bond Leaders ETF | iShares International Treasury Bond ETF [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	20.20%
Abacus Flexible Bond Leaders ETF | iShares J.P. Morgan USD Emerging Markets Bond ETF [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	20.10%
Abacus Flexible Bond Leaders ETF | iShares MBS ETF [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	20.00%
Abacus Flexible Bond Leaders ETF | iShares iBoxx $ High Yield Corporate Bond ETF [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	19.80%
Abacus Flexible Bond Leaders ETF | iShares 0-5 Year High Yield Corporate Bond ETF [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	19.60%
Abacus Flexible Bond Leaders ETF | Exchange Traded Funds [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	99.80%
Abacus Flexible Bond Leaders ETF | Investments Purchased with Proceeds from Securities Lending [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	32.50%
Abacus Flexible Bond Leaders ETF | Cash & Other [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	(32.30%)