XML 71 R49.htm IDEA: XBRL DOCUMENT
v2.4.0.6

RENTAL INCOME (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 sqft item | Dec. 31, 2011 | Dec. 31, 2010
RENTAL INCOME |  |  |
Percentage of rental income related to residential apartments and condominium units with leases of one year or less | 90.00% |  |
Maximum period of non-cancellable operating lease | 1 year |  |
Percentage of rental income related to commercial properties | 10.00% |  |
Minimum future rental income |  |  |
2013 | $ 2,384,000 |  |
2014 | 2,011,000 |  |
2015 | 1,583,000 |  |
2016 | 1,165,000 |  |
2017 | 485,000 |  |
Thereafter | 775,000 |  |
Commercial Property Leases | 8,403,000 |  |
Aggregate contingent rentals from continuing operations | 661,000 | 633,000 | 653,000
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 2,754,312 |  |
Total square feet for expiring leases | 110,805 |  |
Total number of leases expiring | 43 |  |
Percentage of annual base rent for expiring leases | 100.00% |  |
Allowance for doubtful rent receivable | 381,000 | 448,000 |
Recognizing rental income from non-cancelable commercial leases with future rental increases on a straight-line basis | 268,000 |  |
Deferred rental concession | 25,000 |  |
Amortization of deferred rents | 4,100 |  |
Through December 31, 2013 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 470,463 |  |
Total square feet for expiring leases | 23,773 |  |
Total number of leases expiring | 11 |  |
Percentage of annual base rent for expiring leases | 17.00% |  |
Through December 31, 2014 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 588,422 |  |
Total square feet for expiring leases | 29,523 |  |
Total number of leases expiring | 10 |  |
Percentage of annual base rent for expiring leases | 22.00% |  |
Through December 31, 2015 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 266,098 |  |
Total square feet for expiring leases | 8,471 |  |
Total number of leases expiring | 8 |  |
Percentage of annual base rent for expiring leases | 10.00% |  |
Through December 31, 2016 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 593,346 |  |
Total square feet for expiring leases | 27,073 |  |
Total number of leases expiring | 3 |  |
Percentage of annual base rent for expiring leases | 22.00% |  |
Through December 31, 2017 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 448,101 |  |
Total square feet for expiring leases | 11,997 |  |
Total number of leases expiring | 6 |  |
Percentage of annual base rent for expiring leases | 16.00% |  |
Through December 31, 2018 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 58,050 |  |
Total square feet for expiring leases | 1,262 |  |
Total number of leases expiring | 1 |  |
Percentage of annual base rent for expiring leases | 2.00% |  |
Through December 31, 2019 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 200,375 |  |
Total square feet for expiring leases | 5,800 |  |
Total number of leases expiring | 2 |  |
Percentage of annual base rent for expiring leases | 7.00% |  |
Through December 31, 2020 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 64,657 |  |
Total square feet for expiring leases | 1,106 |  |
Total number of leases expiring | 1 |  |
Percentage of annual base rent for expiring leases | 2.00% |  |
Through December 31, 2021 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | 64,800 |  |
Total square feet for expiring leases | 1,800 |  |
Total number of leases expiring | 1 |  |
Percentage of annual base rent for expiring leases | 2.00% |  |
Through December 31, 2022 |  |  |
RENTAL INCOME |  |  |
Annual base rent for expiring leases | $ 0 |  |
Percentage of annual base rent for expiring leases | 0.00% |  |

X
- Definition Represents the amount of allowance for doubtful accounts related to rents receivable. + References No definition available. + Details
Name: | nen_OperatingLeasesAllowanceForDoubtfulRentReceivable
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the amount of amortization of deferred rents. + References No definition available. + Details
Name: | nen_OperatingLeasesAmortizationOfDeferredRents
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of annual rent to be receivable for leases to be expired. + References No definition available. + Details
Name: | nen_OperatingLeasesAnnualBaseRentForExpiringLeases
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the deferred rental concessions on real estate properties. + References No definition available. + Details
Name: | nen_OperatingLeasesDeferralOfRentalConcession
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the maximum period of non-cancellable operating leases. + References No definition available. + Details
Name: | nen_OperatingLeasesNoncancellableMaximumLeaseTerm
Namespace Prefix: | nen_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of leases to be expired. + References No definition available. + Details
Name: | nen_OperatingLeasesNumberOfLeasesExpiring
Namespace Prefix: | nen_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of annual base rent for leases to be expired. + References No definition available. + Details
Name: | nen_OperatingLeasesPercentageOfAnnualBaseRentForExpiringLeases
Namespace Prefix: | nen_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of rental income related to commercial real estate property. + References No definition available. + Details
Name: | nen_OperatingLeasesPercentageOfRentalIncomeRelatedToCommercialProperty
Namespace Prefix: | nen_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of rental income related to residential real estate property. + References No definition available. + Details
Name: | nen_OperatingLeasesPercentageOfRentalIncomeRelatedToResidentialPropertyAndCondominiumUnits
Namespace Prefix: | nen_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount resulting from recognizing rental income from non-cancelable commercial leases with future rental increases on a straight-line basis, which is included in rents receivable. + References No definition available. + Details
Name: | nen_OperatingLeasesRentalIncomeWithFutureRentalIncreases
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the square feet area of rental properties for which leases are to be expired. + References No definition available. + Details
Name: | nen_OperatingLeasesSquareFeetForExpiringLeases
Namespace Prefix: | nen_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OperatingLeasedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future minimum rental payments in aggregate as of the balance sheet date under operating leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future rental payments receivable within one year of the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Future rental payments receivable within the fifth year from the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Future rental payments receivable within the fourth year from the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Future rental payments receivable within the third year from the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Future rental payments receivable within the second year from the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(ii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of contingent rental revenue recognized for the period under lease, based on the occurrences of an event or condition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 23 -Subparagraph b(iii) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_OperatingLeasesIncomeStatementContingentRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration