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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 4) (USD $) | Dec. 31, 2014
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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | $ 135,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
12/31/2016 | 1,183,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
12/31/2017 | 1,782,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
12/31/2018 | 7,860,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
12/31/2019 | 1,942,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Thereafter | 183,170,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Total | 196,072,000 us-gaap_LongTermDebt
Weighted average interest rate (as a percent) | 5.28%us-gaap_LongtermDebtWeightedAverageInterestRate
Effective interest rate (as a percent) | 5.33%us-gaap_DebtInstrumentInterestRateEffectivePercentage
Hamilton Essex 81 |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 143,239 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonEssex81LLCMember
12/31/2016 | 7,966,437 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonEssex81LLCMember
Total | 8,109,676 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonEssex81LLCMember
Hamilton Essex 81 Development |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 1,987,830 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonEssex81DevelopmentLLCMember
Total | 1,987,830 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonEssex81DevelopmentLLCMember
345 Franklin |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2016 | 86,413 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
12/31/2017 | 183,627 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
12/31/2018 | 190,861 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
12/31/2019 | 198,380 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
Thereafter | 9,340,719 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
Total | 10,000,000 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Franklin345LLCMember
Hamilton 1025 |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 72,721 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Hamilton1025LLCMember
12/31/2016 | 4,733,318 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Hamilton1025LLCMember
Total | 4,806,039 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_Hamilton1025LLCMember
Hamilton Bay Apartments |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 74,790 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonBayApartmentsLLCMember
12/31/2016 | 77,805 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonBayApartmentsLLCMember
12/31/2017 | 4,421,408 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonBayApartmentsLLCMember
Total | 4,574,003 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonBayApartmentsLLCMember
Hamilton Minuteman |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 79,647 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonMinutemanLLCMember
12/31/2016 | 83,493 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonMinutemanLLCMember
12/31/2017 | 5,129,371 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonMinutemanLLCMember
Total | 5,292,511 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonMinutemanLLCMember
Hamilton on Main Apts |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
Thereafter | 16,900,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonOnMainLLCMember
Total | 16,900,000 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonOnMainLLCMember
Dexter Park |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 1,541,094 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
12/31/2016 | 1,507,291 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
12/31/2017 | 1,593,424 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
12/31/2018 | 1,684,479 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
12/31/2019 | 79,914,524 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
Total | 86,240,812 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = nen_HamiltonParkTowersLLCMember
Total |
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES |
12/31/2015 | 3,899,321 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
12/31/2016 | 14,454,757 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
12/31/2017 | 11,327,830 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
12/31/2018 | 1,875,340 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
12/31/2019 | 80,112,904 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
Thereafter | 26,240,719 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember
Total | $ 137,910,871 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_EquityMethodInvestmentsMember

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