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Real Estate Assets (Summary of Properties Owned) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Real Estate And Accumulated Depreciation [Line Items]
Real estate assets, net	$ 198,197,703us-gaap_RealEstateInvestmentPropertyNet	$ 160,231,124us-gaap_RealEstateInvestmentPropertyNet
Havana Parker [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Jun. 01, 2006
Location	Aurora, CO
Real estate assets, net	2,269,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_HavanaParkerMember	3,510,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_HavanaParkerMember
Garden Gateway Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Mar. 01, 2007
Location	Colorado Springs, CO
Real estate assets, net	12,120,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_GardenGatewayPlazaMember	12,391,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_GardenGatewayPlazaMember
World Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Sep. 01, 2007
Location	San Bernardino, CA
Real estate assets, net	6,834,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_WorldPlazaMember	6,700,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_WorldPlazaMember
Regatta Square [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Oct. 01, 2007
Location	Denver, CO
Real estate assets, net	1,897,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_RegattaSquareMember	1,936,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_RegattaSquareMember
Sparkys Palm Self Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Nov. 01, 2007
Location	Highland, CA
Real estate assets, net	4,266,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysPalmSelfStorageMember	4,376,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysPalmSelfStorageMember
Sparky's Joshua Self-Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 01, 2007
Location	Hesperia, CA
Real estate assets, net	6,661,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysJoshuaSelfStorageMember	6,815,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysJoshuaSelfStorageMember
Executive Office Park [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Jul. 01, 2008
Location	Colorado Springs, CO
Real estate assets, net	8,274,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ExecutiveOfficeParkMember	8,401,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ExecutiveOfficeParkMember
Waterman Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Aug. 01, 2008
Location	San Bernardino, CA
Real estate assets, net	5,995,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_WatermanPlazaMember	6,129,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_WatermanPlazaMember
Pacific Oaks Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Sep. 01, 2008
Location	Escondido, CA
Real estate assets, net	4,291,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PacificOaksPlazaMember	4,355,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PacificOaksPlazaMember
Morena Office Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Jan. 01, 2009
Location	San Diego, CA
Real estate assets, net	5,461,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_MorenaOfficeCenterMember	5,667,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_MorenaOfficeCenterMember
Fontana Medical Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Feb. 01, 2009
Location	Fontana, CA
Real estate assets, net	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_FontanaMedicalPlazaMember	1,977,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_FontanaMedicalPlazaMember
Rangewood Medical Office Building [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Mar. 01, 2009
Location	Colorado Springs, CO
Real estate assets, net	2,361,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_RangewoodMedicalOfficeBuildingMember	2,256,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_RangewoodMedicalOfficeBuildingMember
Sparky's Thousand Palms Self-Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Aug. 01, 2009
Location	Thousand Palms, CA
Real estate assets, net	5,365,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysThousandPalmsSelfStorageMember	5,545,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysThousandPalmsSelfStorageMember
Sparky's Hesperia East Self-Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 01, 2009
Location	Hesperia, CA
Real estate assets, net	2,376,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysHesperiaEastSelfStorageMember	2,656,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysHesperiaEastSelfStorageMember
Sparky's Rialto Self-Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	May 01, 2010
Location	Rialto, CA
Real estate assets, net	4,681,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysRialtoSelfStorageMember	4,784,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysRialtoSelfStorageMember
Genesis Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Aug. 01, 2010
Location	San Diego, CA
Real estate assets, net	8,613,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_GenesisPlazaMember	8,861,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_GenesisPlazaMember
Dakota Bank Buildings [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	May 01, 2011
Location	Fargo, ND
Real estate assets, net	10,027,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_DakotaBankBuildingsMember	9,798,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_DakotaBankBuildingsMember
Yucca Valley Retail Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Sep. 01, 2011
Location	Yucca Valley, CA
Real estate assets, net	8,044,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_YuccaValleyRetailCenterMember	7,942,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_YuccaValleyRetailCenterMember
Sparky's Sunrise Self-Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 01, 2011
Location	Hesperia, CA
Real estate assets, net	2,142,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysSunriseSelfStorageMember	2,166,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysSunriseSelfStorageMember
Port of San Diego Complex [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 01, 2011
Location	San Diego, CA
Real estate assets, net	13,954,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PortOfSanDiegoComplexMember	14,134,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PortOfSanDiegoComplexMember
Shoreline Medical Building [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	May 01, 2012
Location	Half Moon Bay, CA
Real estate assets, net	5,994,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ShorelineMedicalBuildingMember	6,132,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ShorelineMedicalBuildingMember
The Presidio [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Nov. 01, 2012
Location	Colorado Springs, CO
Real estate assets, net	6,684,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PresidioMember	6,977,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_PresidioMember
Sparky's Lancaster Self Storage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	May 01, 2013
Location	Lancaster, CA
Real estate assets, net	3,616,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysLancasterSelfStorage1Member	3,630,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_SparkysLancasterSelfStorage1Member
Bismarck Office [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Mar. 01, 2014
Location	Fargo, ND
Real estate assets, net	4,969,700us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_BismarckOfficeMember	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_BismarckOfficeMember
Union Terrace [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Aug. 31, 2014
Location	Lakewood, CO
Real estate assets, net	9,032,300us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_UnionTerraceMember	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_UnionTerraceMember
Centennial Tech Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 31, 2014
Location	Colorado Springs, CO
Real estate assets, net	15,540,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_CentennialTechCenterMember	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_CentennialTechCenterMember
Arapahoe Service Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 31, 2014
Location	Centennial, CO
Real estate assets, net	11,873,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ArapahoeServiceCenterMember	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ArapahoeServiceCenterMember
Union Town Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired	Dec. 31, 2014
Location	Colorado Springs, CO
Real estate assets, net	11,268,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_UnionTownCenterMember	0us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_UnionTownCenterMember
NetREIT, Inc. Properties [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real estate assets, net	184,608,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_NetreitIncPropertiesMember	137,138,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_NetreitIncPropertiesMember
Model Home Properties Held In Limited Partnerships [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real estate assets, net	13,588,900us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ModelHomePropertiesHeldInLimitedPartnershipsMember	23,093,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ModelHomePropertiesHeldInLimitedPartnershipsMember
Model Home Properties [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real estate assets, net	$ 13,588,900us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ModelHomePropertiesMember	$ 23,093,000us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = netr_ModelHomePropertiesMember

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 970

-SubTopic 360

-Section S99

-Paragraph 1

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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