XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Segments (Capital Expenditures) (Details) - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Acquisition of operating properties | $ 15,774,855 | $ 42,528,263
Capital expenditures and tenant improvements | 3,713,626 | 2,354,988
Acquisition of retail properties |  | 2,850,000
Total real estate investments | 19,488,481 | 44,883,251
Industrial Office Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Acquisition of operating properties |  | 33,958,263
Capital expenditures and tenant improvements | 3,629,586 | 2,313,655
Residential Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Acquisition of operating properties | 15,774,855 | 5,720,000
Retail Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Capital expenditures and tenant improvements | $ 84,040 | $ 41,333

X
- Definition Acquisition of retail properties. + References No definition available. + Details
Name: | netr_AcquisitionOfRetailProperties
Namespace Prefix: | netr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total of additions to real estate and lease intangibles + References No definition available. + Details
Name: | netr_RealEstateAcquisitions
Namespace Prefix: | netr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reconciliation of other significant reconciling items from segments to consolidated. + References No definition available. + Details
Name: | netr_ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedAbstract
Namespace Prefix: | netr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy. + References No definition available. + Details
Name: | us-gaap_PaymentsForTenantImprovements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=netr_IndustrialOfficePropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_RetailSiteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |