Interim Financial Statements	9 Months Ended
Interim Financial Statements	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interim Financial Statements	INTERIM FINANCIAL STATEMENTS The consolidated financial statements included in this report are unaudited; however, amounts presented in the consolidated balance sheet as of December 31, 2019 are derived from our audited consolidated financial statements as of that date. The unaudited consolidated financial statements as of and for the period ended September 30, 2020 have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information on a basis consistent with the annual audited consolidated financial statements and with the instructions to Form 10-Q. The consolidated financial statements presented herein reflect all adjustments which, in the opinion of management, are necessary for a fair presentation of the financial position of Whitestone and our subsidiaries as of September 30, 2020 and December 31, 2019, and the results of operations for the three and nine month periods ended September 30, 2020 and 2019, the consolidated statements of changes in equity for the three months periods ended March 31, June 30, and September 30, 2020 and 2019 and cash flows for the nine month periods ended September 30, 2020 and 2019. All of these adjustments are of a normal recurring nature. The results of operations for the interim periods are not necessarily indicative of the results expected for a full year. The statements should be read in conjunction with the audited consolidated financial statements and the notes thereto which are included in our Annual Report on Form 10-K for the year ended December 31, 2019. Business. Whitestone was formed as a real estate investment trust (“REIT”) pursuant to the Texas Real Estate Investment Trust Act on August 20, 1998. In July 2004, we changed our state of organization from Texas to Maryland pursuant to a merger where we merged directly with and into a Maryland REIT formed for the sole purpose of the reorganization and the conversion of each of the outstanding common shares of beneficial interest of the Texas entity into 1.42857 common shares of beneficial interest of the Maryland entity. We serve as the general partner of Whitestone REIT Operating Partnership, L.P. (the “Operating Partnership”), which was formed on December 31, 1998 as a Delaware limited partnership. We currently conduct substantially all of our operations and activities through the Operating Partnership. As the general partner of the Operating Partnership, we have the exclusive power to manage and conduct the business of the Operating Partnership, subject to certain customary exceptions. As of September 30, 2020 and December 31, 2019, Whitestone wholly-owned 58 commercial properties in and around Austin, Chicago, Dallas-Fort Worth, Houston, Phoenix and San Antonio. As of September 30, 2020, these properties consist of: Consolidated Operating Portfolio •52 wholly-owned properties that meet our Community Centered Properties® strategy; Redevelopment, New Acquisitions Portfolio •one wholly-owned property that meets our Community Centered Properties® strategy; and •five parcels of land held for future development. As of September 30, 2020, we, through our investment in Pillarstone Capital REIT Operating Partnership LP (“Pillarstone” or “Pillarstone OP”), owned a majority interest in eight properties that do not meet our Community Centered Property® strategy containing approximately 0.9 million square feet of GLA (the “Pillarstone Properties”). We own 81.4% of the total outstanding units of Pillarstone OP, which we account for using the equity method. We also manage the day-to-day operations of Pillarstone OP. In December 2019, a novel strain of coronavirus ("COVID-19") was reported to have surfaced in China. In March 2020, the World Health Organization declared COVID-19 a pandemic, and the United States declared a national emergency due to the impact of the pandemic. As a result, the U.S. and many local governments implemented measures intended to control the spread of COVID-19, including enhanced screenings, quarantine requirements and travel restrictions. For example, in the first half of 2020, local governments in Texas and Arizona, where all but one of our properties are located, mandated a stay in place order, closed non-essential businesses, and closed other types of service businesses, such as bars and restaurants, though they can continue to provide take out and drive through services. As of the date of this Quarterly Report on Form 10-Q, service businesses are permitted to be open with limited occupancy in Texas and Arizona. However, many experts warn that cases in these areas may continue to increase in the coming weeks or months. As a result, there can be no assurance that service businesses will remain open in the near term, or that state and local governments will not take additional measures to control a possible resurgence of COVID-19 in Texas and/or Arizona, any of which may adversely impact our or our tenants’ businesses and their ability to pay their rental payments or otherwise continue to occupy their space. We are unable to predict the impact that the COVID-19 pandemic will have on our financial condition, results of operations and cash flows due to numerous uncertainties including, but not limited to, the duration and spread of the pandemic, its severity in our markets and elsewhere, governmental actions to contain the spread of the pandemic and respond to the reduction in global economic activity, and how quickly and to what extent normal economic and operating conditions can resume. The Company is closely monitoring the impact of the COVID-19 pandemic on all aspects of its business and markets, including how it will impact the businesses of its tenants. The Company has put in place a temporary response team to address tenant concerns in light of the COVID-19 pandemic. The response team is in ongoing communication with the Company’s tenants and is assisting tenants in identifying local, state and federal resources that may be available to support their businesses and employees during the pandemic, including stimulus funds that may be available under the CARES Act. To date, the Company has received a number of rent relief requests from tenants, most often in the form of rent deferral requests, as a result of the COVID-19 pandemic. The Company is evaluating each tenant rent relief request on an case-by-case basis, considering a number of factors. Not all tenant requests will ultimately result in lease concessions, nor is the Company forgoing its contractual rights under its lease agreements at this time. As of the date of this Quarterly Report on Form 10-Q, as a result of the impact of the COVID-19 pandemic, we have received payments of approximately 90% of contractual base rent and common area maintenance reimbursables billed for the third quarter and October.