XML 74 R43.htm IDEA: XBRL DOCUMENT
v3.3.1.900

RENTAL PROPERTIES (Nashoba) (Details) | 1 Months Ended
--- | ---
May. 31, 2013 USD ($)
RENTAL PROPERTIES |
Amount of sale proceeds transferred to Investment Property | $ 2,100,000
Nashoba Apartments in Acton, Massachusetts |
RENTAL PROPERTIES |
Sales price of real estate properties | 4,300,000
Gain on sale of property | $ 3,679,000

X
- Definition Represents the aggregate sales price of real estate properties sold by the entity. + References No definition available. + Details
Name: | nen_RealEstatePropertySalesPrice
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230 + Details
Name: | us-gaap_GainLossOnDispositionOfAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=nen_NashobaApartmentsLPResidentialApartmentsActonMassachusettsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |