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RENTAL INCOME (Commercial Leases) (Details) | 3 Months Ended
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Mar. 31, 2025 USD ($) ft² item
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 3,549,235
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%
2026 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 363,480
Total square feet for expiring leases | ft² | 23,754
Total number of leases expiring | item | 25
Percentage of annual base rent for expiring leases | 10.00%
2027 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 437,222
Total square feet for expiring leases | ft² | 21,475
Total number of leases expiring | item | 11
Percentage of annual base rent for expiring leases | 12.00%
2028 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 260,284
Total square feet for expiring leases | ft² | 7,652
Total number of leases expiring | item | 5
Percentage of annual base rent for expiring leases | 7.00%
2029 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 528,676
Total square feet for expiring leases | ft² | 13,535
Total number of leases expiring | item | 6
Percentage of annual base rent for expiring leases | 15.00%
2030 |
RENTAL INCOME |
Annual base rent for expiring leases | $ | $ 367,467
Total square feet for expiring leases | ft² | 14,327
Total number of leases expiring | item | 6
Percentage of annual base rent for expiring leases | 10.00%
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%

X
- 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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