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RENTAL INCOME (Commercial Leases) (Details) | 9 Months Ended
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Sep. 30, 2024 USD ($) ft² item
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 3,561,975
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 | $ | $ 136,081
Total square feet for expiring leases | ft² | 22,038
Total number of leases expiring | item | 22
Percentage of annual base rent for expiring leases | 4.00%
2026 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 432,277
Total square feet for expiring leases | ft² | 12,275
Total number of leases expiring | item | 10
Percentage of annual base rent for expiring leases | 12.00%
2027 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 423,964
Total square feet for expiring leases | ft² | 15,825
Total number of leases expiring | item | 9
Percentage of annual base rent for expiring leases | 12.00%
2028 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 339,978
Total square feet for expiring leases | ft² | 9,195
Total number of leases expiring | item | 4
Percentage of annual base rent for expiring leases | 10.00%
2029 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 637,570
Total square feet for expiring leases | ft² | 21,410
Total number of leases expiring | item | 8
Percentage of annual base rent for expiring leases | 18.00%
2030 |
RENTAL INCOME |
Percentage of annual base rent for expiring leases | 0.00%
2032 |
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 | $ | $ 947,721
Total square feet for expiring leases | ft² | 27,140
Total number of leases expiring | item | 3
Percentage of annual base rent for expiring leases | 26.00%

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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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