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RENTAL INCOME (Tables) | 3 Months Ended
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Mar. 31, 2016
RENTAL INCOME |
Schedule of minimum future annual rental income on non-cancellable operating leases | Approximately 7% was related to commercial properties, which have minimum future annual rental income on non-cancellable operating leases at March 31, 2016 as follows:
|  | Commercial |
|  | Property Leases |
2017 |  | $ | 2,751,000 |
2018 |  |  | 2,164,000 |
2019 |  |  | 1,873,000 |
2020 |  |  | 1,318,000 |
2021 |  |  | 855,000 |
Thereafter |  |  | 594,000 |
|  | $ | 9,555,000 |
Schedule of information for commercial leases |
|  | Annual base |  |  |  |  |  | Percentage of |
|  | rent for |  | Total square feet |  | Total number of |  | annual base rent for |
Through March 31, |  | expiring leases |  | for expiring leases |  | leases expiring |  | expiring leases |
2017 |  | $ | 563,446 |  | 22,958 |  | 10 |  | 20 | %
2018 |  |  | 196,867 |  | 7,111 |  | 6 |  | 7 | %
2019 |  |  | 459,360 |  | 13,540 |  | 9 |  | 16 | %
2020 |  |  | 756,358 |  | 26,866 |  | 12 |  | 26 | %
2021 |  |  | 121,632 |  | 1,523 |  | 3 |  | 4 | %
2022 |  |  | 647,765 |  | 31,274 |  | 3 |  | 22 | %
2023 |  |  | — |  | — |  | — |  | — | %
2024 |  |  | 157,443 |  | 4,771 |  | 1 |  | 5 | %
2025 |  |  | — |  | — |  | — |  | — | %
2026 |  |  | — |  | — |  | — |  | — | %
Totals |  | $ | 2,902,871 |  | 108,043 |  | 44 |  | 100 | %

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- Definition Tabular disclosure of information related to commercial leases, including annual base rent, total square feet, total number, and percentage of annual base rent for expiring leases. + References No definition available. + Details
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- Definition Tabular disclosure of future minimum rental receivable in the aggregate and for each of the five succeeding fiscal years for noncancelable operating leases. + References No definition available. + Details
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Namespace Prefix: | nen_
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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration