<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>2.4.0.6</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>58</ContextCount>
  <ElementCount>163</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>23</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Disclosure - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Balance Sheet</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Balance Sheet</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Balance Sheet (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Balance Sheet (Parentheticals)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Statement of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Statement of Income</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Statement of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Statement of Cash Flows</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Statement of Changes in Members' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Statement of Changes in Members' Equity</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Disclosure - Organization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note</Role>
      <ShortName>Organization</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note0</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note00</Role>
      <ShortName>Related Party Transactions</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Real Estate Held for Investment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note000</Role>
      <ShortName>Real Estate Held for Investment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Major Tenants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note0000</Role>
      <ShortName>Major Tenants</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Discontinued Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note00000</Role>
      <ShortName>Discontinued Operations</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Members' Capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note000000</Role>
      <ShortName>Members' Capital</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/Note0000000</Role>
      <ShortName>Income Taxes</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteTables</Role>
      <ShortName>Related Party Transactions (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Real Estate Held for Investment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteTables0</Role>
      <ShortName>Real Estate Held for Investment (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Major Tenants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteTables00</Role>
      <ShortName>Major Tenants (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Discontinued Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteTables000</Role>
      <ShortName>Discontinued Operations (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteTables0000</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Organization (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteDetail</Role>
      <ShortName>Organization (Detail)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Summary of Significant Accounting Policies (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteDetail0</Role>
      <ShortName>Summary of Significant Accounting Policies (Detail)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>023 - Disclosure - Related Party Transactions (Detail) - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/RelatedPartyTransactionsTable</Role>
      <ShortName>Related Party Transactions (Detail) - Related Party Transactions</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>024 - Disclosure - Related Party Transactions (Detail) - Related Party Transactions (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/RelatedPartyTransactionsTable_Parentheticals</Role>
      <ShortName>Related Party Transactions (Detail) - Related Party Transactions (Parentheticals)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>025 - Disclosure - Real Estate Held for Investment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteDetail000</Role>
      <ShortName>Real Estate Held for Investment (Detail)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>026 - Disclosure - Real Estate Held for Investment (Detail) - Real Estate Held of Investment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/RealEstateHeldofInvestmentTable</Role>
      <ShortName>Real Estate Held for Investment (Detail) - Real Estate Held of Investment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>027 - Disclosure - Real Estate Held for Investment (Detail) - Acquired Intangibles</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/AcquiredIntangiblesTable</Role>
      <ShortName>Real Estate Held for Investment (Detail) - Acquired Intangibles</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>028 - Disclosure - Real Estate Held for Investment (Detail) - Acquired Intangibles (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/AcquiredIntangiblesTable_Parentheticals</Role>
      <ShortName>Real Estate Held for Investment (Detail) - Acquired Intangibles (Parentheticals)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>029 - Disclosure - Real Estate Held for Investment (Detail) - Future Minimum Rent</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/FutureMinimumRentTable</Role>
      <ShortName>Real Estate Held for Investment (Detail) - Future Minimum Rent</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>031 - Disclosure - Major Tenants (Detail) - Major Tenants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/MajorTenantsTable</Role>
      <ShortName>Major Tenants (Detail) - Major Tenants</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>032 - Disclosure - Discontinued Operations (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteDetail00000</Role>
      <ShortName>Discontinued Operations (Detail)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>033 - Disclosure - Discontinued Operations (Detail) - Discontinued operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/DiscontinuedoperationsTable</Role>
      <ShortName>Discontinued Operations (Detail) - Discontinued operations</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>034 - Disclosure - Members' Capital (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/NoteDetail000000</Role>
      <ShortName>Members' Capital (Detail)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>036 - Disclosure - Income Taxes (Detail) - Federal Taxable Income Reconciliation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/FederalTaxableIncomeReconciliationTable</Role>
      <ShortName>Income Taxes (Detail) - Federal Taxable Income Reconciliation</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>037 - Disclosure - Income Taxes (Detail) - Federal Tax Partners' Capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://aeifunds.com/role/FederalTaxPartnersCapitalTable</Role>
      <ShortName>Income Taxes (Detail) - Federal Tax Partners' Capital</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Info">Process Flow-Through: 001 - Statement - Balance Sheet</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2010'</Log>
    <Log type="Info">Process Flow-Through: 002 - Statement - Balance Sheet (Parentheticals)</Log>
    <Log type="Info">Process Flow-Through: 003 - Statement - Statement of Income</Log>
    <Log type="Info">Process Flow-Through: 004 - Statement - Statement of Cash Flows</Log>
  </Logs>
  <InputFiles>
    <File>aei26-20121231.xml</File>
    <File>aei26-20121231.xsd</File>
    <File>aei26-20121231_cal.xml</File>
    <File>aei26-20121231_def.xml</File>
    <File>aei26-20121231_lab.xml</File>
    <File>aei26-20121231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
