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Real Estate Assets and Lease Intangibles (Summary of the properties owned) (Details) (USD $) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2012 sqft | Dec. 31, 2011 sqft
Real Estate And Accumulated Depreciation [Line Items] |  |
Real estate assets and lease intangibles, net | $ 148,409,439 | $ 133,336,214
Havana Parker [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Jun. 01, 2006 | Jun. 01, 2006
Geographic Location Of Property | Aurora, Colorado | Aurora, Colorado
Rentable square feet | 114,000 | 114,000
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 5,268,100 | 5,399,500
Garden Gateway Plaza [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Mar. 01, 2007 | Mar. 01, 2007
Geographic Location Of Property | Colorado Springs, Colorado | Colorado Springs, Colorado
Rentable square feet | 115,052 | 115,052
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 12,627,500 | 13,008,600
World Plaza [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Sep. 01, 2007 | Sep. 01, 2007
Geographic Location Of Property | San Bernardino, California | San Bernardino, California
Rentable square feet | 55,098 | 55,098
Properties Descriptions | Retail | Retail
Real estate assets and lease intangibles, net | 6,908,100 | 6,933,700
Reqatta Square [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Oct. 01, 2007 | Oct. 01, 2007
Geographic Location Of Property | Denver, Colorado | Denver, Colorado
Rentable square feet | 5,983 | 5,983
Properties Descriptions | Retail | Retail
Real estate assets and lease intangibles, net | 1,989,000 | 2,027,600
Sparkys Palm Self Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Nov. 01, 2007 | Nov. 01, 2007
Geographic Location Of Property | Highland, California | Highland, California
Rentable square feet | 50,250 | 50,250
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 4,514,600 | 4,598,900
Sparky's Joshua Self-Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Dec. 01, 2007 | Dec. 01, 2007
Geographic Location Of Property | Hesperia, California | Hesperia, California
Rentable square feet | 149,750 | 149,750
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 7,026,500 | 7,155,800
Executive Office Park [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Jul. 01, 2008 | Jul. 01, 2008
Geographic Location Of Property | Colorado Springs, Colorado | Colorado Springs, Colorado
Rentable square feet | 65,084 | 65,084
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 8,568,600 | 8,710,100
Pacific Oaks Plaza [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Sep. 01, 2008 | Sep. 01, 2008
Geographic Location Of Property | Escondido, California | Escondido, California
Rentable square feet | 16,000 | 16,000
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 4,458,300 | 4,536,200
Morena Office Center [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Jan. 01, 2009 | Jan. 01, 2009
Geographic Location Of Property | San Diego, California | San Diego, California
Rentable square feet | 26,784 | 26,784
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 5,935,600 | 5,918,800
Fontana Medical Plaza [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Feb. 01, 2009 | Feb. 01, 2009
Geographic Location Of Property | Fontana, California | Fontana, California
Rentable square feet | 10,500 | 10,500
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 2,071,200 | 2,118,400
Rangewood Medical Office Building [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Mar. 01, 2009 | Mar. 01, 2009
Geographic Location Of Property | Colorado Springs, Colorado | Colorado Springs, Colorado
Rentable square feet | 18,222 | 18,222
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 2,361,400 | 2,407,300
Sparky's Thousand Palms Self-Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Aug. 01, 2009 | Aug. 01, 2009
Geographic Location Of Property | Thousand Palms, California | Thousand Palms, California
Rentable square feet | 113,126 | 113,126
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 5,724,600 | 5,832,400
Sparky's Hesperia East Self-Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Dec. 01, 2009 | Dec. 01, 2009
Geographic Location Of Property | Hesperia, California | Hesperia, California
Rentable square feet | 72,940 | 72,940
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 2,703,300 | 2,724,800
Sparky's Rialto Self-Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | May 01, 2010 | May 01, 2010
Geographic Location Of Property | Rialto, California | Rialto, California
Rentable square feet | 101,343 | 101,343
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 5,067,500 | 5,144,700
Genesis Plaza [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Aug. 01, 2010 | Aug. 01, 2010
Geographic Location Of Property | San Diego, California | San Diego, California
Rentable square feet | 57,685 | 57,685
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 9,266,800 | 9,428,200
Dakota Bank Buildings [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | May 01, 2011 | May 01, 2011
Geographic Location Of Property | Fargo, North Dakota | Fargo, North Dakota
Rentable square feet | 119,749 | 119,749
Properties Descriptions | Office | Office
Real estate assets and lease intangibles, net | 8,823,300 | 9,287,000
Yucca Valley Retail Center [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Sep. 01, 2011 | Sep. 01, 2011
Geographic Location Of Property | Yucca Valley, California | Yucca Valley, California
Rentable square feet | 103,596 | 85,996
Properties Descriptions | Retail | Retail
Real estate assets and lease intangibles, net | 7,591,200 | 6,687,600
Sparky's Sunrise Self-Storage [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Dec. 01, 2011 | Dec. 01, 2011
Geographic Location Of Property | Hesperia, California | Hesperia, California
Rentable square feet | 93,851 | 93,851
Properties Descriptions | Self-Storage | Self-Storage
Real estate assets and lease intangibles, net | 2,203,300 | 2,207,200
Port of San Diego Complex [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | Dec. 01, 2011 | Dec. 01, 2011
Geographic Location Of Property | San Diego, California | San Diego, California
Rentable square feet | 146,700 | 146,700
Properties Descriptions | Industrial | Industrial
Real estate assets and lease intangibles, net | 14,351,900 | 14,500,000
Shoreline Medical Building [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Acquisition Date | May 01, 2012 |
Geographic Location Of Property | Half Moon Bay, California |
Rentable square feet | 15,335 |
Properties Descriptions | Office |
Real estate assets and lease intangibles, net | 6,304,000 |
NetREIT Inc Properties [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Real estate assets and lease intangibles, net | 123,764,800 | 118,626,800
Model Home Properties Held In Limited Partnerships [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Properties Descriptions | Residential | Residential
Real estate assets and lease intangibles, net | 18,677,100 | 10,027,900
Model Home Properties Held In Income and Investment Funds [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Properties Descriptions | Residential | Residential
Real estate assets and lease intangibles, net | 5,967,500 | 4,681,500
Model Home Properties [Member] |  |
Real Estate And Accumulated Depreciation [Line Items] |  |
Real estate assets and lease intangibles, net | $ 24,644,600 | $ 14,709,400

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- Definition Date the property was acquired, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule III -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 28 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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- Definition This description includes the geographical location and the type of property (unimproved land, parking garage, shopping center, garden apartment, retail outlet, multi-tenant commercial), and may include the name of the property (such as ABC Shopping Center). An amount not exceeding five percent of the total carrying amount of all real estate investments may be described as miscellaneous investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 + Details
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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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