XML 66 R27.htm IDEA: XBRL DOCUMENT
v2.4.0.8

PARTNERS' CAPITAL (Tables) - 10Q | 9 Months Ended
--- | ---
Sep. 30, 2014
PARTNERS' CAPITAL |
Schedule of information per depositary receipt |
|  | Nine Months Ended September30, |
|  | 2014 |  | 2013 |
Income per Depositary Receipt before Discontinued Operations |  | $ | 0.11 |  | $ | 0.42 |
Income per Depository Receipt from Discontinued Operations |  | 0.00 |  | 0.95 |
Net Income per Depositary Receipt after Discontinued Operations |  | $ | 0.11 |  | $ | 1.37 |
Distributions per Depositary Receipt |  | $ | 0.75 |  | $ | 0.75 |

X
- Definition Tabular disclosure of information related to income (loss) and distributions per depository receipt. + References No definition available. + Details
Name: | nen_ScheduleOfIncomeLossAndDistributionPerDepositoryReceiptTableTextBlock
Namespace Prefix: | nen_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PartnersCapitalNotesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration