Real Estate Assets (Geographic Locations of Real Estate Properties Owned) (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) ft² Property
NetREIT, Inc. Properties [Member]
Real Estate Properties [Line Items]
Number of properties | Property	22
Aggregate Square Feet | ft²	1,691,650
Approximate % of Square Feet	100.00%
Current Base Annual Rent | $	$ 21,634,741
Approximate of Aggregate % Annual Rent	100.00%
NetREIT, Inc. Properties [Member] | California [Member]
Real Estate Properties [Line Items]
Number of properties | Property	7
Aggregate Square Feet | ft²	420,927
Approximate % of Square Feet	24.90%
Current Base Annual Rent | $	$ 5,947,230
Approximate of Aggregate % Annual Rent	27.50%
NetREIT, Inc. Properties [Member] | Colorado [Member]
Real Estate Properties [Line Items]
Number of properties | Property	11
Aggregate Square Feet | ft²	873,684
Approximate % of Square Feet	51.60%
Current Base Annual Rent | $	$ 12,229,995
Approximate of Aggregate % Annual Rent	56.50%
NetREIT, Inc. Properties [Member] | North Dakota [Member]
Real Estate Properties [Line Items]
Number of properties | Property	4
Aggregate Square Feet | ft²	397,039
Approximate % of Square Feet	23.50%
Current Base Annual Rent | $	$ 3,457,516
Approximate of Aggregate % Annual Rent	16.00%
Model Home Properties [Member]
Real Estate Properties [Line Items]
Number of properties | Property	149
Aggregate Square Feet | ft²	431,101
Approximate % of Square Feet	100.00%
Current Base Annual Rent | $	$ 4,230,060
Approximate of Aggregate % Annual Rent	100.00%
Model Home Properties [Member] | Southwest [Member]
Real Estate Properties [Line Items]
Number of properties | Property	92
Aggregate Square Feet | ft²	281,561
Approximate % of Square Feet	65.30%
Current Base Annual Rent | $	$ 2,559,924
Approximate of Aggregate % Annual Rent	60.50%
Model Home Properties [Member] | West [Member]
Real Estate Properties [Line Items]
Number of properties | Property	5
Aggregate Square Feet | ft²	14,491
Approximate % of Square Feet	3.40%
Current Base Annual Rent | $	$ 142,272
Approximate of Aggregate % Annual Rent	3.40%
Model Home Properties [Member] | Southeast [Member]
Real Estate Properties [Line Items]
Number of properties | Property	40
Aggregate Square Feet | ft²	102,716
Approximate % of Square Feet	23.80%
Current Base Annual Rent | $	$ 1,108,668
Approximate of Aggregate % Annual Rent	26.20%
Model Home Properties [Member] | Midwest [Member]
Real Estate Properties [Line Items]
Number of properties | Property	3
Aggregate Square Feet | ft²	9,458
Approximate % of Square Feet	2.20%
Current Base Annual Rent | $	$ 131,916
Approximate of Aggregate % Annual Rent	3.10%
Model Home Properties [Member] | East [Member]
Real Estate Properties [Line Items]
Number of properties | Property	9
Aggregate Square Feet | ft²	22,875
Approximate % of Square Feet	5.30%
Current Base Annual Rent | $	$ 287,280
Approximate of Aggregate % Annual Rent	6.80%