XML 41 R63.htm IDEA: XBRL DOCUMENT
v3.20.1

INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($) | Mar. 31, 2020 | Mar. 31, 2019
--- | --- | ---
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
Less: unamortized deferred financing costs | $ (1,521,000) |
Debt maturities net of unamortized deferred financing costs |  | $ 166,471,297
Weighted average interest rate (as a percent) | 3.99% |
Effective interest rate (as a percent) | 4.06% |
Investment Properties |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
3/31/2019 | $ 207,527 |
3/31/2020 | 215,702 |
3/31/2021 | 224,199 |
3/31/2022 | 233,032 |
3/31/2023 | 242,212 |
Thereafter | 166,081,458 |
Total | 167,204,130 |
Less: unamortized deferred financing costs | (823,189) |
Debt maturities net of unamortized deferred financing costs | 166,380,941 |
Hamilton Essex 81 |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
Thereafter | 10,000,000 |
Total | 10,000,000 |
Less: unamortized deferred financing costs | (75,840) |
Debt maturities net of unamortized deferred financing costs | 9,924,160 | 9,910,371
345 Franklin |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
3/31/2019 | 207,527 |
3/31/2020 | 215,702 |
3/31/2021 | 224,199 |
3/31/2022 | 233,032 |
3/31/2023 | 242,212 |
Thereafter | 8,181,458 |
Total | 9,304,130 |
Less: unamortized deferred financing costs | (54,932) |
Debt maturities net of unamortized deferred financing costs | 9,249,198 | 9,442,200
Hamilton Minuteman |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
Thereafter | 6,000,000 |
Total | 6,000,000 |
Less: unamortized deferred financing costs | (93,770) |
Debt maturities net of unamortized deferred financing costs | 5,906,230 | 5,898,047
Hamilton on Main Apts |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
Thereafter | 16,900,000 |
Total | 16,900,000 |
Less: unamortized deferred financing costs | (70,893) |
Debt maturities net of unamortized deferred financing costs | 16,829,107 | 16,813,056
Dexter Park |  |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |  |
Thereafter | 125,000,000 |
Total | 125,000,000 |
Less: unamortized deferred financing costs | (527,754) |
Debt maturities net of unamortized deferred financing costs | $ 124,472,246 | $ 124,407,623

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer) reported by an equity method investment of the entity. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebt
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInNextRollingTwelveMonths
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInRollingAfterYearFive
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing in the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInRollingYearFive
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing in the fourth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInRollingYearFour
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing in the third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInRollingYearThree
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of collateralized debt obligations reported by an equity method investment of the entity with dates maturing in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtMaturitiesRepaymentsOfPrincipalInRollingYearTwo
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the debt maturities net of unamortized deferred financing costs. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationSecuredDebtNetOfUnamortizedDeferredFinancingCosts
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the unamortized discount on deferred financing costs. + References No definition available. + Details
Name: | nen_EquityMethodInvestmentSummarizedFinancialInformationUnamortizedDeferredFinancingCosts
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average interest rate of long-term debt outstanding calculated at point in time. + References No definition available. + Details
Name: | us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_InvestmentPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_HamiltonEssex81LLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_Franklin345LLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_HamiltonMinutemanLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_HamiltonOnMainLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nen_HamiltonParkTowersLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |