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RENTAL INCOME (Commercial Leases) (Details) | 3 Months Ended
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Mar. 31, 2024 USD ($) ft² item
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 3,550,960
Total square feet for expiring leases | ft² | 129,886
Total number of leases expiring | item | 59
Percentage of annual base rent for expiring leases | 100.00%
2025 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 477,248
Total square feet for expiring leases | ft² | 31,876
Total number of leases expiring | item | 29
Percentage of annual base rent for expiring leases | 13.00%
2026 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 211,470
Total square feet for expiring leases | ft² | 6,145
Total number of leases expiring | item | 9
Percentage of annual base rent for expiring leases | 6.00%
2027 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 395,326
Total square feet for expiring leases | ft² | 15,162
Total number of leases expiring | item | 8
Percentage of annual base rent for expiring leases | 11.00%
2028 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 189,605
Total square feet for expiring leases | ft² | 5,493
Total number of leases expiring | item | 2
Percentage of annual base rent for expiring leases | 5.00%
2029 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 394,176
Total square feet for expiring leases | ft² | 10,041
Total number of leases expiring | item | 4
Percentage of annual base rent for expiring leases | 11.00%
2030 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 291,029
Total square feet for expiring leases | ft² | 12,026
Total number of leases expiring | item | 1
Percentage of annual base rent for expiring leases | 8.00%
2033 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 110,600
Total square feet for expiring leases | ft² | 1,106
Total number of leases expiring | item | 1
Percentage of annual base rent for expiring leases | 3.00%
2034 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 533,784
Total square feet for expiring leases | ft² | 20,897
Total number of leases expiring | item | 2
Percentage of annual base rent for expiring leases | 15.00%
Thereafter |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 947,722
Total square feet for expiring leases | ft² | 27,140
Total number of leases expiring | item | 3
Percentage of annual base rent for expiring leases | 28.00%

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

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- Definition Represents the number of leases to be expired. + References No definition available. + Details
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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
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- Definition Represents the square feet area of rental properties for which leases are to be expired. + References No definition available. + Details
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- 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
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