Real Estate Assets and Lease Intangibles, Summary of Properties Owned (Details) (USD $)					9 Months Ended																								9 Months Ended		9 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Model Home [Member] Home	Sep. 30, 2014 Havana Parker [Member]	Sep. 30, 2014 Havana Parker [Member] Office Building [Member] sqft	Sep. 30, 2014 Garden Gateway Plaza [Member] Office Building [Member] sqft	Sep. 30, 2014 World Plaza [Member] Retail Properties [Member] sqft	Sep. 30, 2014 Regatta Square [Member] Retail Properties [Member] sqft	Sep. 30, 2014 Sparky's Palm Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Sparky's Joshua Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Executive Office Park [Member] Office Building [Member] sqft	Sep. 30, 2014 Waterman Plaza [Member] Retail Properties [Member] sqft	Sep. 30, 2014 Pacific Oaks Plaza [Member] Office Building [Member] sqft	Sep. 30, 2014 Morena Office Center [Member] Office Building [Member] sqft	Sep. 30, 2014 Fontana Medical Plaza [Member] Office Building [Member] sqft	Sep. 30, 2014 Rangewood Medical Office Building [Member] Office Building [Member] sqft	Sep. 30, 2014 Sparky's Thousand Palms Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Sparky's Hesperia East Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Sparky's Rialto Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Genesis Plaza [Member] Office Building [Member] sqft	Sep. 30, 2014 Dakota Bank Buildings [Member] Office Building [Member] sqft	Sep. 30, 2014 Yucca Valley Retail Center [Member] Retail Properties [Member] sqft	Sep. 30, 2014 Sparky's Sunrise Self-Storage [Member] Self Storage Facility [Member] sqft	Sep. 30, 2014 Port of San Diego Complex [Member] Industrial Building [Member] sqft	Sep. 30, 2014 Shoreline Medical Building [Member] Office Building [Member] sqft	Sep. 30, 2014 The Presidio [Member] Office Building [Member] sqft	Sep. 30, 2014 Sparky's Lancaster Self-Storage [Member] Self Storage Facility [Member] sqft	Apr. 30, 2014 Bismarck Office Building [Member] sqft	Sep. 30, 2014 Bismarck Office Building [Member] Self Storage Facility [Member] sqft	Aug. 31, 2014 Union Terrace [Member] sqft	Sep. 30, 2014 Union Terrace [Member] Office Building [Member] sqft	Sep. 30, 2014 NetREIT, Inc. Properties [Member]	Sep. 30, 2014 Model Home Properties Held In Limited Partnerships [Member] Model Home [Member] Home	Sep. 30, 2014 Model Home Properties Held In Income and Investment Funds [Member] Model Home [Member] Home	Sep. 30, 2014 Model Home Properties [Member]
Real Estate And Accumulated Depreciation [Line Items]
Date acquired					Jun. 30, 2006	Mar. 31, 2007	Sep. 30, 2007	Oct. 31, 2007	Nov. 30, 2007	Dec. 31, 2007	Jul. 31, 2008	Aug. 31, 2008	Sep. 30, 2008	Jan. 31, 2009	Feb. 28, 2009	Mar. 31, 2009	Aug. 31, 2009	Dec. 31, 2009	May 31, 2010	Aug. 31, 2010	May 31, 2011	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2011	May 31, 2012	Nov. 30, 2012	May 31, 2013		Apr. 30, 2014		Aug. 31, 2014
Date acquired																																	Various in 2009-2014	Various in 2010-2014
Location					Aurora, Colorado	Colorado Springs, Colorado	San Bernardino, California	Denver, Colorado	Highland, California	Hesperia, California	Colorado Springs, Colorado	San Bernardino, California	Escondido, California	San Diego, California	Fontana, California	Colorado Springs, Colorado	Thousand Palms, California	Hesperia, California	Rialto, California	San Diego, California	Fargo, North Dakota	Yucca Valley, California	Hesperia, California	San Diego, California	Half Moon Bay, California	Colorado Springs, Colorado	Lancaster, CA		Bismarck, ND		Lakewood, CO		CA, AZ, WA, TX, SC, NC and NJ	CA, AZ, TX, SC, PA, NJ
Square footage					114,000	115,052	55,098	5,983	60,865	151,000	65,084	21,170	16,000	26,784	10,500	18,222	113,126	73,640	101,359	57,685	119,749	103,596	93,851	146,700	15,335	80,800	71,000	93,000	93,000	84,000	84,000
Real estate assets, net	$ 162,278,907	$ 159,455,162		$ 2,300,000	$ 2,329,600	$ 12,208,800	$ 6,564,800	$ 1,907,300	$ 4,293,700	$ 6,696,100	$ 8,296,100	$ 6,029,500	$ 4,315,200	$ 5,514,200	$ 1,920,900	$ 2,374,900	$ 5,401,400	$ 2,385,500	$ 4,707,500	$ 8,711,800	$ 10,064,000	$ 7,283,800	$ 2,149,100	$ 13,893,500	$ 6,028,200	$ 6,752,900	$ 3,626,500		$ 5,082,700		$ 9,261,500	$ 147,799,500	$ 10,390,100	$ 4,089,300	$ 14,479,400
Homes			55																														41	14