<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.8.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>23</ContextCount>
  <ElementCount>12</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>22</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory></MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>020000 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Global High Income ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearGlobalHighIncomeETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Global High Income ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>020001 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Global High Income ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearGlobalHighIncomeETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Global High Income ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>020002 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Global Income ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearGlobalIncomeETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Global Income ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>020003 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Global Income ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearGlobalIncomeETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Global Income ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>020004 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Global Rotation ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearGlobalRotationETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Global Rotation ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>020005 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Global Rotation ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearGlobalRotationETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Global Rotation ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>020006 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Quality 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearQuality1000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Quality 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>020007 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Quality 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearQuality1000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Quality 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>020008 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Quality 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearQuality2000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Quality 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>020009 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Quality 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearQuality2000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Quality 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>020010 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Rising Income 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearRisingIncome1000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Rising Income 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>020011 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Rising Income 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearRisingIncome1000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Rising Income 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>020012 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Rising Income 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearRisingIncome2000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Rising Income 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>020013 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Rising Income 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearRisingIncome2000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Rising Income 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>020014 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Value 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearValue1000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Value 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>020015 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Value 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearValue1000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Value 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>020016 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Value 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearValue2000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Value 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>020017 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Value 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearValue2000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Value 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>020018 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Yield 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearYield1000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Yield 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020019 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Yield 1000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearYield1000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Yield 1000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>020020 - Document - Risk/Return Summary {Unlabeled} - WBI BullBear Yield 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DocumentRiskReturnSummaryUnlabeledWBIBullBearYield2000ETF</Role>
      <ShortName>Risk/Return Summary- WBI BullBear Yield 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>020021 - Disclosure - Risk/Return Detail Data {Elements} - WBI BullBear Yield 2000 ETF</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://absoluteshares.com/20180606/role/DisclosureRiskReturnDetailDataElementsWBIBullBearYield2000ETF</Role>
      <ShortName>Risk/Return Detail Data- WBI BullBear Yield 2000 ETF</ShortName>
      <MenuCategory></MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ck0001591939-20180606.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>040000 - Disclosure - Risk/Return Detail Data {Elements}</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/rr/role/RiskReturnDetailData</Role>
      <ShortName>Risk/Return Detail Data</ShortName>
      <MenuCategory></MenuCategory>
      <Position>24</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>ck0001591939-20180606.xml</File>
    <File>ck0001591939-20180606.xsd</File>
    <File>ck0001591939-20180606_cal.xml</File>
    <File>ck0001591939-20180606_def.xml</File>
    <File>ck0001591939-20180606_lab.xml</File>
    <File>ck0001591939-20180606_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2012-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/rr/2012-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
