XML 65 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

OTHER ASSETS & DEPOSIT AND ESCROW HELD FOR ACQUISITION OF REAL ESTATE (Details) (USD $) | Jun. 30, 2013 | May 29, 2013 | Dec. 31, 2012
--- | --- | --- | ---
OTHER ASSETS & DEPOSIT AND ESCROW HELD FOR ACQUISITION OF REAL ESTATE |  |  |
Security deposits | $ 1,962,000 |  | $ 1,919,000
Escrow deposits to fund future capital improvements | 132,000 |  | 420,000
Financing fees, net | 1,771,000 |  | 1,136,000
Accumulated amortization on financing and leasing fees | 739,000 |  | 772,000
Amount of sale proceeds transferred to Investment Property | 2,100,000 | 2,100,000 |
Deposits in connection with the purchase of Windsor Green Apartments in Andover, Massachusetts transferred to investment property | $ 2,000,000 |  |

X
- Definition Represents the accumulated amortization on financing and leasing fees. + References No definition available. + Details
Name: | nen_AccumulatedAmortizationOnFinancingAndLeasingFees
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the amount of deposits transferred to investment property. + References No definition available. + Details
Name: | nen_DepositsTransferredToInvestmentProperty
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Restricted cash held in escrow to fund future capital improvements. + References No definition available. + Details
Name: | nen_EscrowDepositToFundCapitalImprovements
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the financing and leasing fees, net of accumulated amortization. + References No definition available. + Details
Name: | nen_FinancingAndLeasingFeesNet
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | nen_OtherAssetsAndDepositAndEscrowHeldForAcquisitionOfRealEstateAbstract
Namespace Prefix: | nen_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of sale proceeds transferred to investment property. + References No definition available. + Details
Name: | nen_RealEstatePropertySalesProceedsTransferredToInvestmentProperty
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_SecurityDeposit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant