Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Aug. 11, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	PILLARSTONE CAPITAL REIT
Entity Central Index Key	0000928953
Document Type	10-Q/A
Document Period End Date	Jun. 30, 2017
Amendment Flag	true
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2017
Entity Common Stock, Shares Outstanding		405,169
Amendment Description	Restatement of Consolidated Financial Statements This Amendment No. 1 on Form 10-Q/A (this “Form 10-Q/A”) amends and restates certain items noted below in the quarterly report on Form 10-Q of Pillarstone Capital REIT (the “Company”) for the period ended June 30, 2017, as originally filed with the Securities and Exchange Commission (the “SEC”) on August 11, 2017 (the “Original Filing”). This Form 10-Q/A restates the Company's consolidated financial statements and related disclosures for the period ended June 30, 2017 to reflect the correction of an accounting error described below. Background and Effect of Restatement As previously disclosed, on December 8, 2016, the Company and Pillarstone Capital REIT Operating Partnership LP, a subsidiary and the operating partnership of the Company (the “Operating Partnership” or “Pillarstone OP”), entered into a Contribution Agreement (the “Contribution Agreement”) with Whitestone REIT Operating Partnership, L.P. (“Whitestone OP”), a subsidiary and the operating partnership of Whitestone REIT (“Whitestone”), both of which are related parties to the Company and the Operating Partnership. Pursuant to the Contribution Agreement, Whitestone OP contributed to the Operating Partnership all of the equity interests in four of its wholly-owned subsidiaries (the "Subsidiaries"): Whitestone CP Woodland Ph. 2, LLC, a Delaware limited liability company; Whitestone Industrial-Office, LLC, a Texas limited liability company; Whitestone Offices, LLC, a Texas limited liability company; and Whitestone Uptown Tower, LLC, a Delaware limited liability company. The Subsidiaries own 14 real estate assets and, in exchange for this contribution, Whitestone OP received aggregate consideration of approximately $84.0 million, consisting of (i) approximately $18.1 million of Class A units representing limited partnership interests in the Operating Partnership (“OP Units”), issued at a price of $1.331 per OP Unit; and (ii) the assumption of approximately $65.9 million of liabilities by the Operating Partnership (collectively, the “Acquisition”). The Company is the general partner of the Operating Partnership and, immediately after the Acquisition, had an equity ownership interest in the Operating Partnership representing approximately 18.6% and valued at approximately $4.1 million. In connection with the Contribution Agreement, on December 8, 2016, the Company, as the general partner of the Operating Partnership, entered into an Amended and Restated Agreement of Limited Partnership of the Operating Partnership (as amended and restated, the “Limited Partnership Agreement”). Pursuant to the Limited Partnership Agreement, subject to certain protective rights of the limited partners described below, the general partner has responsibility and discretion in the management and control of the Operating Partnership, including the ability to cause the Operating Partnership to enter into certain major transactions including a merger of the Operating Partnership or a sale of substantially all of the assets of the Operating Partnership. The limited partners have no power to remove the general partner without the general partner's consent. In addition, pursuant to the Limited Partnership Agreement, the general partner may not conduct any business other than in connection with the ownership, acquisition and disposition of the Operating Partnership’s interest and management of its business without the consent of a majority of the limited partners other than in connection with certain actions described therein. As such, the Company was deemed to exercise significant influence but not complete control over the Operating Partnership. As of the date of the Acquisition, the Company determined that it was not the primary beneficiary of the Operating Partnership under the variable interest entity (“VIE”) rules prescribed by U.S. generally accepted accounting principles (“U.S. GAAP”), and thus the Company’s investment in the Operating Partnership qualified for usage of the equity method of accounting. In November 2017, the Company and Whitestone each received a comment letter from the Staff (the “Staff”) of the Division of Corporation Finance of the SEC relating to the Company’s and Whitestone’s Annual Reports on Form 10-K for the year ended December 31, 2016. In their letters, the Staff requested that the Company and Whitestone provide them with an analysis to support the determination that the Operating Partnership is a VIE of which Whitestone is the primary beneficiary. In response to the Staff’s comment, Whitestone, on its own behalf and on behalf of the Company, provided the Staff with its analysis of Whitestone’s accounting and financial reporting obligations relating to its interest in the Operating Partnership. After communicating its analysis and conclusions to the Staff and responding to additional questions from the Staff relating to this matter, the Staff did not object to or otherwise take exception to the initial determinations at the time of the consummation of the Acquisition in December 2016 but provided a verbal reminder in that the determination of the primary beneficiary of a VIE should be continually reassessed, and recommended that Whitestone consider pre-clearing future accounting treatment of the Operating Partnership with the Staff of the Office of the Chief Accountant (“OCA”). In connection with the preparation and review of its financial statements for the quarter ended March 31, 2018, Whitestone concluded, in accordance with the Staff’s recommendation, and after consultation with its outside accounting advisors, that it would be prudent to seek pre-clearance from the OCA of Whitestone's proposed treatment of the Operating Partnership in its financial statements for such quarter. Accordingly, in April 2018, Whitestone submitted a letter to the OCA seeking their concurrence with its determinations that Whitestone maintained its status as the primary beneficiary of the Operating Partnership and, accordingly, should continue to consolidate the Operating Partnership in its financial statements for the quarter ended March 31, 2018 in accordance U.S. GAAP. After further correspondence, including telephonic meetings between Whitestone, its advisors and the OCA, the OCA informed Whitestone that it objected to Whitestone’s and the Company’s conclusions that Whitestone was the primary beneficiary of the Operating Partnership since the Acquisition in December 2016 and during the subsequent periods. Whitestone and the Company respectfully disagreed with the OCA’s determination and Whitestone, on its own behalf and on behalf of the Company, made a formal appeal to the Chief Accountant of the SEC in June 2018. In July 2018, Whitestone and its advisory team of accounting and legal professionals met with the Chief Accountant, members of the OCA and Division of Corporate Finance. On July 30, 2018, the Chief Accountant of the SEC informed Whitestone that its formal appeal was denied and that the OCA objected to Whitestone’s and the Company’s presentation of their investments in the Operating Partnership under the VIE accounting guidance since the consummation of the Acquisition in December 2016. As a result, the Company’s management has determined that the Company should not have used the equity method of accounting to present its investment in the Operating Partnership in its audited consolidated financial statements for the years ended December 31, 2016 and December 31, 2017 and unaudited consolidated financial statements for the quarters ended March 31, 2017; June 30, 2017; September 30, 2017 and March 31, 2018 (collectively, the “Prior Period Financial Statements”). After consideration of the OCA’s objection to Whitestone’s original accounting, the Company evaluated its original accounting of the equity method and the materiality of the error quantitatively and qualitatively and concluded that it was material to the Prior Period Financial Statements. The Company revised its original accounting treatment accordingly in the amended filings. The Company determined that it is the primary beneficiary of the Operating Partnership through the Company's power to direct the activities that most significantly impact the Operating Partnership’s economic performance and the Company's right to receive benefits based on its ownership percentage in the Operating Partnership. Accordingly, the Company accounts for the Operating Partnership as a VIE and fully consolidates it in the Company's financial statements prospectively and in the amended filings. Whitestone OP’s 81.4% interest in the Operating Partnership is accounted for as a non-controlling interest and is deducted from the Company’s share of net income and equity in the Operating Partnership. Items Amended in This Filing This Form 10-Q/A amends and restates the following indicated parts of the Original Filing: Item 1. Financial Statements Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations Item 4. Controls and Procedures