Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12201-110248

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The percentage charged for managing real estate properties.

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Investment in Real Estate Partnership - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 08, 2016 USD ($) property subsidiary $ / shares	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Pillarstone Capital REIT Operating Partnership LP [Member]
Variable Interest Entity [Line Items]
Amortization of the basis difference between the cost of investment and the Company's share of underlying net book value		$ 27	$ 27	$ 81	$ 81
Performance Guarantee [Member]
Variable Interest Entity [Line Items]
Noncontingent liability		462		$ 462
Guarantee liability, amortization period				7 years
Amortization of guarantee liability		$ 10	$ 23	$ 29	$ 140
Pillarstone Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Number of wholly-owned subsidiaries \| subsidiary	4
Number of non-core properties \| property	14
Consideration amount	$ 84,000
Consideration, limited partnership interest	$ 18,100
Consideration, limited partnership interest (in dollars per share) \| $ / shares	$ 1.331
Liabilities assumed	$ 65,900
Property management fee, percent fee	5.00%
Asset management fee, percent fee	0.125%
Pillarstone Variable Interest Entity [Member] \| Uptown Tower [Member]
Variable Interest Entity [Line Items]
Property management fee, percent fee	3.00%
Asset management fee, percent fee	0.125%
Pillarstone Variable Interest Entity [Member] \| Line of Credit [Member]
Variable Interest Entity [Line Items]
Liabilities assumed	$ 15,500
Pillarstone Variable Interest Entity [Member] \| Notes Payable [Member] \| Uptown Tower Promissory Note [Member]
Variable Interest Entity [Line Items]
Liabilities assumed	16,300
Pillarstone Variable Interest Entity [Member] \| Notes Payable [Member] \| Industrial-Office Promissory Note [Member]
Variable Interest Entity [Line Items]
Liabilities assumed	$ 34,100