<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Version>2.4.0.8</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>482</ContextCount>
  <ElementCount>345</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>104</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0010 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/BalanceSheet</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/BalanceSheetParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>0020 - Statement - CONSOLIDATED STATEMENTS OF INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/StatementOfIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>0030 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/StatementOfPartnersCapital</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>0040 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/CashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1010 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSignificantAccountingPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>1020 - Disclosure - RENTAL PROPERTIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalProperties</Role>
      <ShortName>RENTAL PROPERTIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>1030 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>1040 - Disclosure - OTHER ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureOtherAssets</Role>
      <ShortName>OTHER ASSETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>1050 - Disclosure - MORTGAGE NOTES PAYABLE</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureMortgageNotesPayable</Role>
      <ShortName>MORTGAGE NOTES PAYABLE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>1060 - Disclosure - ADVANCE RENTAL PAYMENTS AND SECURITY DEPOSITS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureAdvanceRentalPaymentsAndSecurityDeposits</Role>
      <ShortName>ADVANCE RENTAL PAYMENTS AND SECURITY DEPOSITS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>1070 - Disclosure - PARTNERS' CAPITAL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosurePartnersCapital</Role>
      <ShortName>PARTNERS' CAPITAL</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>1080 - Disclosure - TREASURY UNITS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTreasuryUnits</Role>
      <ShortName>TREASURY UNITS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>1090 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>1100 - Disclosure - RENTAL INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalIncome</Role>
      <ShortName>RENTAL INCOME</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>1110 - Disclosure - CASH FLOW INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureCashFlowInformation</Role>
      <ShortName>CASH FLOW INFORMATION</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>1120 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureFairValueMeasurements</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>1130 - Disclosure - TAXABLE INCOME AND TAX BASIS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTaxableIncomeAndTaxBasis</Role>
      <ShortName>TAXABLE INCOME AND TAX BASIS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>1140 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVentures</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>1150 - Disclosure - IMPACT OF RECENTLY-ISSUED ACCOUNTING STANDARDS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureImpactOfRecentlyIssuedAccountingStandards</Role>
      <ShortName>IMPACT OF RECENTLY-ISSUED ACCOUNTING STANDARDS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>1160 - Disclosure - DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureDiscontinuedOperationsAndSalesOfRealEstate</Role>
      <ShortName>DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>1170 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQuarterlyFinancialData</Role>
      <ShortName>QUARTERLY FINANCIAL DATA (UNAUDITED)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>1180 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>1190 - Disclosure - QUALIFYING ACCOUNTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQualifyingAccounts</Role>
      <ShortName>QUALIFYING ACCOUNTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2010 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>3020 - Disclosure - RENTAL PROPERTIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalPropertiesTables</Role>
      <ShortName>RENTAL PROPERTIES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>3050 - Disclosure - MORTGAGE NOTES PAYABLE (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureMortgageNotesPayableTables</Role>
      <ShortName>MORTGAGE NOTES PAYABLE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>3070 - Disclosure - PARTNERS' CAPITAL (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosurePartnersCapitalTables</Role>
      <ShortName>PARTNERS' CAPITAL (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>3080 - Disclosure - TREASURY UNITS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTreasuryUnitsTables</Role>
      <ShortName>TREASURY UNITS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>3100 - Disclosure - RENTAL INCOME (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalIncomeTables</Role>
      <ShortName>RENTAL INCOME (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>3120 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>3130 - Disclosure - TAXABLE INCOME AND TAX BASIS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTaxableIncomeAndTaxBasisTables</Role>
      <ShortName>TAXABLE INCOME AND TAX BASIS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>3140 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesTables</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>3160 - Disclosure - DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureDiscontinuedOperationsAndSalesOfRealEstateTables</Role>
      <ShortName>DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>3170 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQuarterlyFinancialDataTables</Role>
      <ShortName>QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>3190 - Disclosure - QUALIFYING ACCOUNTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQualifyingAccountsTables</Role>
      <ShortName>QUALIFYING ACCOUNTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>4010 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSignificantAccountingPoliciesDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>4011 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSignificantAccountingPoliciesDetails2</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>4020 - Disclosure - RENTAL PROPERTIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalPropertiesDetails</Role>
      <ShortName>RENTAL PROPERTIES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>4021 - Disclosure - RENTAL PROPERTIES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalPropertiesDetails2</Role>
      <ShortName>RENTAL PROPERTIES (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>4022 - Disclosure - RENTAL PROPERTIES (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalPropertiesDetails3</Role>
      <ShortName>RENTAL PROPERTIES (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>4030 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>4040 - Disclosure - OTHER ASSETS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureOtherAssetsDetails</Role>
      <ShortName>OTHER ASSETS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>4050 - Disclosure - MORTGAGE NOTES PAYABLE (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureMortgageNotesPayableDetails</Role>
      <ShortName>MORTGAGE NOTES PAYABLE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>4060 - Disclosure - ADVANCE RENTAL PAYMENTS AND SECURITY DEPOSITS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureAdvanceRentalPaymentsAndSecurityDepositsDetails</Role>
      <ShortName>ADVANCE RENTAL PAYMENTS AND SECURITY DEPOSITS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>4070 - Disclosure - PARTNERS' CAPITAL (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosurePartnersCapitalDetails</Role>
      <ShortName>PARTNERS' CAPITAL (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>4080 - Disclosure - TREASURY UNITS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTreasuryUnitsDetails</Role>
      <ShortName>TREASURY UNITS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>4100 - Disclosure - RENTAL INCOME (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalIncomeDetails</Role>
      <ShortName>RENTAL INCOME (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>4101 - Disclosure - RENTAL INCOME (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureRentalIncomeDetails2</Role>
      <ShortName>RENTAL INCOME (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>4110 - Disclosure - CASH FLOW INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureCashFlowInformationDetails</Role>
      <ShortName>CASH FLOW INFORMATION (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>4120 - Disclosure - FAIR VALUE MEASUREMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureFairValueMeasurementsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>4130 - Disclosure - TAXABLE INCOME AND TAX BASIS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureTaxableIncomeAndTaxBasisDetails</Role>
      <ShortName>TAXABLE INCOME AND TAX BASIS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>4140 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesDetails</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>4141 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesDetails2</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>4142 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesDetails3</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>4143 - Disclosure - INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesDetails4</Role>
      <ShortName>INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 4)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>4160 - Disclosure - DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureDiscontinuedOperationsAndSalesOfRealEstateDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS AND SALES OF REAL ESTATE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>4170 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQuarterlyFinancialDataDetails</Role>
      <ShortName>QUARTERLY FINANCIAL DATA (UNAUDITED) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>4180 - Disclosure - SUBSEQUENT EVENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>4190 - Disclosure - QUALIFYING ACCOUNTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.thehamiltoncompany.com/role/DisclosureQualifyingAccountsDetails</Role>
      <ShortName>QUALIFYING ACCOUNTS (Details)</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">Element dei_EntityListingDepositoryReceiptRatio had a mix of decimals attribute values: 1 5.</Log>
    <Log type="Info">Element nen_PartnersCapitalAccountUnitsTreasuryAverageRepurchasePricePerUnit had a mix of decimals attribute values: 0 2.</Log>
    <Log type="Info">Element nen_ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization had a mix of decimals attribute values: -3 0.</Log>
    <Log type="Info">Element nen_ReconciliationOfIncomeFromBookBasisToTaxBasisTaxFreeExchanges had a mix of decimals attribute values: -3 0.</Log>
    <Log type="Info">Element us-gaap_EquityMethodInvestmentOwnershipPercentage had a mix of decimals attribute values: 2 3.</Log>
    <Log type="Info">Process Flow-Through: 0010 - Statement - CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2010'</Log>
    <Log type="Info">Process Flow-Through: 0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 0020 - Statement - CONSOLIDATED STATEMENTS OF INCOME</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2012'</Log>
    <Log type="Info">Process Flow-Through: 0040 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>nen-20131231.xml</File>
    <File>nen-20131231.xsd</File>
    <File>nen-20131231_cal.xml</File>
    <File>nen-20131231_def.xml</File>
    <File>nen-20131231_lab.xml</File>
    <File>nen-20131231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
