<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>639</ContextCount>
  <ElementCount>37</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>91</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>3</UnitCount>
  <MyReports>
    <Report instance="fp0100324-1_ncsrixbrl.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>030000 - Disclosure - Form N-CSR Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/NcsrCover</Role>
      <ShortName>Form N-CSR Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="fp0100324-1_ncsrixbrl.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>030001 - Disclosure - Shareholder Report</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReport</Role>
      <ShortName>Shareholder Report</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="fp0100324-1_ncsrixbrl.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>040010 - Disclosure - Shareholder Report, Line Graph (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails</Role>
      <ShortName>Shareholder Report, Line Graph (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="fp0100324-1_ncsrixbrl.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>040015 - Disclosure - Shareholder Report, Average Annual Return (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails</Role>
      <ShortName>Shareholder Report, Average Annual Return (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="fp0100324-1_ncsrixbrl.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>040020 - Disclosure - Shareholder Report, Holdings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails</Role>
      <ShortName>Shareholder Report, Holdings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="N-CSR" isDefinitelyNotFs="true" isNcsr="true" isOEF="true" isRRorOEF="true" isUsgaap="true" original="fp0100324-1_ncsrixbrl.htm">fp0100324-1_ncsrixbrl.htm</File>
    <File>fro-20260731.xsd</File>
  </InputFiles>
  <SupplementalFiles>
    <File>fp0100324-1_01.jpg</File>
    <File>fp0100324-1_02.jpg</File>
    <File>fp0100324-1_03.jpg</File>
    <File>i2ae4724fd9a49c5ee60f7432.jpg</File>
    <File>i32c452ff9c47cb6f0b4e3f5a.jpg</File>
    <File>i3692d4cfeb2ba3baf165585a.jpg</File>
    <File>i437a92fd6fc50964fc1dbaab.jpg</File>
    <File>i4ca276988537c0ea67dac5d6.jpg</File>
    <File>i5433df1bd1f7a67f67216ccf.jpg</File>
    <File>i7e9b43e1745ed73e17caf3df.jpg</File>
    <File>i80434071868323c802487f2f.jpg</File>
    <File>i9a8ef3d3782cce03f16fbcc9.jpg</File>
    <File>ia35b37f9ea6d24f3fe77012c.jpg</File>
    <File>ia42a072f479ffe33a8ec30d1.jpg</File>
    <File>id014f2d16bfddc9b233ae3f7.jpg</File>
    <File>idbdeb95111ef1cdbcf8ea29f.jpg</File>
    <File>iee9584fab6ccfbbf4105c7ff.jpg</File>
    <File>ifcde133e0704c0151dbd8445.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="20">http://fasb.org/us-gaap/2026</BaseTaxonomy>
    <BaseTaxonomy items="26">http://xbrl.sec.gov/dei/2026</BaseTaxonomy>
    <BaseTaxonomy items="900">http://xbrl.sec.gov/oef/2026</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
