Related Party Transactions - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Related Party Transaction [Line Items]
Asset management fees	$ (145)	$ (224)	$ (449)	$ (660)
Rental \| Whitestone [Member]
Related Party Transaction [Line Items]
Rent	220	211	701	524
Management fees \| Whitestone [Member]
Related Party Transaction [Line Items]
Property management fees	(99)	(168)	(320)	(510)
Asset management fees	(46)	(56)	(129)	(150)
Office expenses \| Whitestone [Member]
Related Party Transaction [Line Items]
Rent expense	(4)	0	(14)	0
Interest expense \| Whitestone [Member]
Related Party Transaction [Line Items]
Interest expense	$ 0	$ (52)	$ 0	$ (161)

Amount of expense for administrative services provided to the limited liability company (LLC) or limited partnership (LP) by the managing member or general partner, affiliate of managing member or general partner, or affiliate of LLC or LP, for example, but not limited to, salaries, rent, or overhead costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

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- Definition

Amount of expenses related to the managing member or general partner for management of the day-to-day business functions of the limited liability company (LLC) or limited partnership (LP).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272

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-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 2
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Rent Expense, Related Party

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