Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Consolidation. We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership. As of September 30, 2020 and December 31, 2019, we owned a majority of the partnership interests in the Operating Partnership. Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us. Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the period. Issuance of additional common shares of beneficial interest in Whitestone (the “common shares”) and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one-for-one basis (the “OP units”) changes the percentage of ownership interests of both the noncontrolling interests and Whitestone. Equity Method. For the years prior to December 31, 2017, Pillarstone OP was accounted for under the profit-sharing method. In accordance with the Financial Accounting Standards Board’s (“FASB”) guidance applicable to sales of real estate or interests therein, specifically FASB Accounting Standards Codification (“ASC”) 360-20, “Real Estate Sales,” Topic 606, “Revenue from Contracts with Customers” and ASC 610, “Other Income–Gains and Losses from the Derecognition of Nonfinancial Assets,” we adopted Topic 606 and ASC 610 as of January 1, 2018, resulting in the derecognition of the underlying assets and liabilities associated with the Contribution (defined below) as of January 1, 2018 and the recognition of the Company’s investment in Pillarstone OP under the equity method. See Note 6 (Investment in Real Estate Partnership) for additional disclosure on Pillarstone OP. In these financial statements, unless otherwise indicated, we do not include the Pillarstone Properties when we refer to our properties. Basis of Accounting. Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred. Use of Estimates. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts, the estimated fair value of interest rate swaps and the estimates supporting our impairment analysis for the carrying values of our real estate assets. Actual results could differ from those estimates. In particular, the coronavirus (“COVID-19”) pandemic has adversely impacted and is likely to further adversely impact the Company’s business and markets, including the Company’s operations and the operations of its tenants. The full extent to which the pandemic will directly or indirectly impact the Company's business, results of operations and financial condition, including revenues, expenses, reserves and allowances, fair value measurements, and asset impairment charges, will depend on future developments that are highly uncertain and difficult to predict. These developments include, but are not limited to, the duration and spread of the pandemic, its severity in our markets and elsewhere, the impact on our tenants’ businesses and financial condition, 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. Reclassifications. We have reclassified certain prior period amounts in the accompanying consolidated financial statements in order to be consistent with the current period presentation. These reclassifications had no effect on net income, total assets, total liabilities or equity. Restricted Cash. We classify all cash pledged as collateral to secure certain obligations and all cash whose use is limited as restricted cash. During 2015, pursuant to the terms of our $15.1 million 4.99% Note, due January 6, 2024 (see Note 7 (Debt)), which is collateralized by our Anthem Marketplace property, we were required by the lenders thereunder to establish a cash management account controlled by the lenders to collect all amounts generated by our Anthem Marketplace property in order to collateralize such promissory note. Derivative Instruments and Hedging Activities. We utilize derivative financial instruments, principally interest rate swaps, to manage our exposure to fluctuations in interest rates. We have established policies and procedures for risk assessment, and the approval, reporting and monitoring of derivative financial instruments. We recognize our interest rate swaps as cash flow hedges with the effective portion of the changes in fair value recorded in comprehensive income (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedges’ change in fair value is recorded immediately into earnings. Our cash flow hedges are determined using Level 2 inputs under ASC 820, “Fair Value Measurements and Disclosures.” Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations in which significant inputs and significant value drivers are observable. As of September 30, 2020, we consider our cash flow hedges to be highly effective. Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges (interest, real estate taxes, loan fees, and direct and indirect development costs related to buildings under construction), are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the three months ended September 30, 2020, approximately $122,000 and $71,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2020, approximately $362,000 and $231,000 in interest expense and real estate taxes, respectively, were capitalized. For the three months ended September 30, 2019, approximately $127,000 and $77,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2019, approximately $365,000 and $251,000 in interest expense and real estate taxes, respectively, were capitalized. Due to the COVID-19 pandemic, we have taken a prudent pause in acquisitions activity and are carefully evaluating development and redevelopment activities on a case-by-case basis. Share-Based Compensation. From time to time, we grant nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2018 Long-Term Equity Incentive Ownership Plan (the “2018 Plan”). Awarded shares and units vest when certain performance conditions are met. We recognize compensation expense when achievement of the performance conditions is probable based on management’s most recent estimates using the fair value of the shares as of the grant date. We recognized $1,645,000 and $1,719,000 in share-based compensation for the three months ended September 30, 2020 and 2019, respectively, and we recognized $4,167,000 and $4,770,000 in share-based compensation for the nine months ended September 30, 2020 and 2019, respectively. We recognize forfeitures as they occur. Noncontrolling Interests. Noncontrolling interests are the portion of equity in a subsidiary not attributable to a parent. Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone’s equity. On the consolidated statements of operations and comprehensive income (loss), subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests. The consolidated statements of changes in equity is included for quarterly financial statements, including beginning balances, activity for the period and ending balances for shareholders’ equity, noncontrolling interests and total equity. Accrued Rents and Accounts Receivable. Included in accrued rents and accounts receivable are base rents, tenant reimbursements and receivables attributable to recording rents on a straight-line basis. We review the collectability of charges under our tenant operating leases on a regular basis, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area where the property is located, including the impact of the COVID-19 pandemic on tenants’ businesses and financial condition. With the adoption of ASC No. 842, Leases Topic 842, as of January 1, 2019 we recognize an adjustment to rental revenue if we deem it probable that the receivable will not be collected. Prior to the adoption of Topic 842, we recognized an allowance for doubtful accounts and bad debt expense of the specific rents receivable. Our review of collectability under our operating leases includes any accrued rental revenues related to the straight-line method of reporting rental revenue. As of September 30, 2020 and December 31, 2019, we had an allowance for uncollectible accounts of $15.5 million and $11.2 million, respectively. During the three months ending September 30, 2020 and 2019, we recorded an adjustment to rental revenue in the amount of $1.3 million and $0.5 million, respectively, and during the nine months ending September 30, 2020 and 2019, we recorded an adjustment to rental revenue in the amount of $4.5 million and $0.9 million, respectively. Included in the adjustment to rental revenue for the three and nine months ending September 30, 2020, was a bad debt adjustment of $0.7 million and $1.8 million, respectively, and a straight-line rent reserve adjustment of $0.1 million and $1.1 million, respectively, related to credit loss for the conversion of 12 and 84 tenants, respectively, to cash basis revenue as a result of COVID-19 collectability analysis. Revenue Recognition. All leases on our properties are classified as operating leases, and the related rental income is recognized on a straight-line basis over the terms of the related leases. Differences between rental income earned and amounts due per the respective lease agreements are capitalized or charged, as applicable, to accrued rents and accounts receivable. Percentage rents are recognized as rental income when the thresholds upon which they are based have been met. Recoveries from tenants for taxes, insurance, and other operating expenses are recognized as revenues in the period the corresponding costs are incurred. We combine lease and nonlease components in lease contracts, which includes combining base rent, recoveries, and percentage rents into a single line item, Rental, within the consolidated statements of operations and comprehensive income (loss). Additionally, we have tenants who pay real estate taxes directly to the taxing authority. We exclude these costs paid directly by the tenant to third parties on our behalf from revenue recognized and the associated property operating expense. Other property income primarily includes amounts recorded in connection with management fees and lease termination fees. Pillarstone OP pays us management fees for property management, leasing and day-to-day advisory and administrative services. Their obligations are satisfied over time. Pillarstone OP is billed monthly and typically pays quarterly. Revenues are governed by the Management Agreements (as defined in Note 6 (Investment in Real Estate Partnership)). Refer to Note 6 (Investment in Real Estate Partnership) for additional information regarding the Management Agreements with Pillarstone OP. Additionally, we recognize lease termination fees in the year that the lease is terminated and collection of the fee is probable. Amounts recorded within other property income are accounted for at the point in time when control of the goods or services transfers to the customer and our performance obligation is satisfied. See our Annual Report on Form 10-K for the year ended December 31, 2019 for further discussion on significant accounting policies. Recent Accounting Pronouncements. In April 2020, the FASB issued guidance on the application of Topic 842, relating to concessions being made by lessors in response to the COVID-19 pandemic. The guidance notes that it would be acceptable for entities to make an election to account for lease concessions relating to the effects of the COVID-19 pandemic consistent with how those concessions would be accounted for under Topic 842 as though enforceable rights and obligations for those concessions existed, even if such enforceable rights and obligations are not explicitly contained in the lease contract. Thus, for concessions relating to the COVID-19 pandemic, an entity would not have to analyze each contract to determine whether enforceable rights and obligations for concessions exist in the contract, and would have the option to apply, or not to apply, the general lease modification guidance in Topic 842 as it stands. We have elected this option to account for lease concessions relating to the effects of the COVID-19 pandemic consistent with how those concessions would be accounted for under Topic 842 as though enforceable rights and obligations for those concessions existed. Therefore, such concessions are not accounted for as a lease modification under Topic 842. In February 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-2 which provided the principles for the recognition, measurement, presentation and disclosure of leases. Additional guidance and targeted improvements to Topic 842 were made through the issuance of supplementary ASUs in July 2018, December 2018 and March 2019. Effective January 1, 2019, we adopted the new lease accounting guidance in Topic 842. As the lessee and lessor, we have elected the package of practical expedients permitted in Topic 842. Accordingly, we have accounted for our existing operating leases as operating leases under the new guidance, without reassessing (a) whether the contract contains a lease under Topic 842, (b) whether classification of the operating lease would be different in accordance with Topic 842, or (c) whether the unamortized initial direct costs before transition adjustments (as of December 31, 2018) would have met the definition of initial direct costs in Topic 842 at lease commencement. Additionally, as the lessee and lessor we will use hindsight in determining the lease term and in assessing impairment of our right-of-use assets. As a result of the adoption of the new lease accounting guidance, as the lessee, we recognized on January 1, 2019 (a) a lease liability of approximately $1.1 million, which represents the present value of the remaining lease payments of approximately $1.2 million discounted using our incremental borrowing rate of 4.5%, and (b) a right-of-use asset of approximately $1.1 million. The adoption of Topic 842 did not have a material impact to our net income and related per share amounts. Upon adoption of Topic 842, lessees and lessors are required to apply a modified retrospective transition approach. Reporting entities are permitted to choose one of two methods to recognize and measure leases within the scope of Topic 842: •Apply Topic 842 to each lease that existed at the beginning of the earliest comparative period presented in the financial statements as well as leases that commenced after that date. Under this method, prior comparative periods presented are adjusted. For leases that commenced prior to the beginning of the earliest comparative period presented, a cumulative-effect adjustment is recognized at that date. •Apply the guidance to each lease that had commenced as of the beginning of the reporting period in which the entity first applies the leases standard with a cumulative-effect adjustment as of that date. Prior comparative periods would not be adjusted under this method. We have elected an optional transition method that allows entities to initially apply Topic 842 at January 1, 2019, the date of adoption, and to recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. As the lessor, we have not assessed unamortized legal costs as part of the package of practical expedients, and we will not make any adjustment to retained earnings at the date of adoption to write off unamortized legal costs. We continued to amortize unamortized legal costs as of December 31, 2018 over the life of the respective leases. We did not have a cumulative-effect adjustment as of the adoption date. Additionally, the optional transition method does allow us to not have to apply the new standard (including disclosure requirements) to comparative periods presented. Those periods can continue to be presented in accordance with prior generally accepted accounting principles. Topic 842 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases and operating leases. Based on our election of the package of practical expedients, our existing commercial leases, where we are the lessor, continue to be accounted for as operating leases under the new standard. However, Topic 842 changed certain requirements regarding the classification of leases that could result in us recognizing certain long-term leases entered into or modified after January 1, 2019 as sales-type leases or finance leases, as opposed to operating leases. We will continue to monitor our leases following the adoption date to ensure that they are classified in accordance with the new lease standards. We elected a practical expedient which allows lessors to not separate non-lease components from the lease component when the timing and pattern of transfer for the lease components and non-lease components are the same and if the lease component is classified as an operating lease. As a result, we now present all rentals and reimbursements from tenants as a single line item, Rental, within the consolidated statements of operations and comprehensive income (loss). For the three months ended September 30, 2020, we had rent revenues of $21.8 million and rental recoveries of $8.3 million compared to $21.6 million and $8.2 million, respectively, for the three months ended September 30, 2019. For the nine months ended September 30, 2020, we had rent revenues of $65.6 million and rental recoveries of $25.0 million compared to $64.8 million and $23.7 million, respectively, for the nine months ended September 30, 2019. We review the collectability of charges under our tenant operating leases on a regular basis, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area where the property is located, including the impact of the COVID-19 pandemic on tenants’ businesses and financial condition. Each tenant is included in one of several portfolios and an allowance is calculated using the calculation methodology for the respective portfolio. With the adoption of Topic 842, we will recognize an adjustment to rental revenue if we deem it probable that the receivable will not be collected. Tenant portfolios will be converted to cash basis if collectability is of great concern. Prior to the adoption of Topic 842, we recognized an allowance for doubtful accounts and bad debt expense of the specific rents receivable. Our review of collectability under our operating leases includes any accrued rental revenues related to the straight-line method of reporting rental revenue.

Basis of Consolidation. We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership. As of September 30, 2020 and December 31, 2019, we owned a majority of the partnership interests in the Operating Partnership. Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership.

Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us. Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the period. Issuance of additional common shares of beneficial interest in Whitestone (the “common shares”) and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one-for-one basis (the “OP units”) changes the percentage of ownership interests of both the noncontrolling interests and Whitestone.

Equity Method. For the years prior to December 31, 2017, Pillarstone OP was accounted for under the profit-sharing method. In accordance with the Financial Accounting Standards Board’s (“FASB”) guidance applicable to sales of real estate or interests therein, specifically FASB Accounting Standards Codification (“ASC”) 360-20, “Real Estate Sales,” Topic 606, “Revenue from Contracts with Customers” and ASC 610, “Other Income–Gains and Losses from the Derecognition of Nonfinancial Assets,” we adopted Topic 606 and ASC 610 as of January 1, 2018, resulting in the derecognition of the underlying assets and liabilities associated with the Contribution (defined below) as of January 1, 2018 and the recognition of the Company’s investment in Pillarstone OP under the equity method. See Note 6 (Investment in Real Estate Partnership) for additional disclosure on Pillarstone OP.

Use of Estimates. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts, the estimated fair value of interest rate swaps and the estimates supporting our impairment analysis for the carrying values of our real estate assets. Actual results could differ from those estimates. In particular, the coronavirus (“COVID-19”) pandemic has adversely impacted and is likely to further adversely impact the Company’s business and markets, including the Company’s operations and the operations of its tenants. The full extent to which the pandemic will directly or indirectly impact the Company's business, results of operations and financial condition, including revenues, expenses, reserves and allowances, fair value measurements, and asset impairment charges, will depend on future developments that are highly uncertain and difficult to predict. These developments include, but are not limited to, the duration and spread of the pandemic, its severity in our markets and elsewhere, the impact on our tenants’ businesses and financial condition, 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.

Restricted Cash. We classify all cash pledged as collateral to secure certain obligations and all cash whose use is limited as restricted cash. During 2015, pursuant to the terms of our $15.1 million 4.99% Note, due January 6, 2024 (see Note 7 (Debt)), which is collateralized by our Anthem Marketplace property, we were required by the lenders thereunder to establish a cash management account controlled by the lenders to collect all amounts generated by our Anthem Marketplace property in order to collateralize such promissory note.

Derivative Instruments and Hedging Activities. We utilize derivative financial instruments, principally interest rate swaps, to manage our exposure to fluctuations in interest rates. We have established policies and procedures for risk assessment, and the approval, reporting and monitoring of derivative financial instruments. We recognize our interest rate swaps as cash flow hedges with the effective portion of the changes in fair value recorded in comprehensive income (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedges’ change in fair value is recorded immediately into earnings. Our cash flow hedges are determined using Level 2 inputs under ASC 820, “Fair Value Measurements and Disclosures.” Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations in which significant inputs and significant value drivers are observable. As of September 30, 2020, we consider our cash flow hedges to be highly effective.

Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges (interest, real estate taxes, loan fees, and direct and indirect development costs related to buildings under construction), are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the three months ended September 30, 2020, approximately $122,000 and $71,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2020, approximately $362,000 and $231,000 in interest expense and real estate taxes, respectively, were capitalized. For the three months ended September 30, 2019, approximately $127,000 and $77,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2019, approximately $365,000 and $251,000 in interest expense and real estate taxes, respectively, were capitalized. Due to the COVID-19 pandemic, we have taken a prudent pause in acquisitions activity and are carefully evaluating development and redevelopment activities on a case-by-case basis.

Share-Based Compensation. From time to time, we grant nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2018 Long-Term Equity Incentive Ownership Plan (the “2018 Plan”). Awarded shares and units vest when certain performance conditions are met. We recognize compensation expense when achievement of the performance conditions is probable based on management’s most recent estimates using the fair value of the shares as of the grant date. We recognized $1,645,000 and $1,719,000 in share-based compensation for the three months ended September 30, 2020 and 2019, respectively, and we recognized $4,167,000 and $4,770,000 in share-based compensation for the nine months ended September 30, 2020 and 2019, respectively. We recognize forfeitures as they occur.

Noncontrolling Interests. Noncontrolling interests are the portion of equity in a subsidiary not attributable to a parent. Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone’s equity. On the consolidated statements of operations and comprehensive income (loss), subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests. The consolidated statements of changes in equity is included for quarterly financial statements, including beginning balances, activity for the period and ending balances for shareholders’ equity, noncontrolling interests and total equity.

Accrued Rents and Accounts Receivable. Included in accrued rents and accounts receivable are base rents, tenant reimbursements and receivables attributable to recording rents on a straight-line basis. We review the collectability of charges under our tenant operating leases on a regular basis, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area where the property is located, including the impact of the COVID-19 pandemic on tenants’ businesses and financial condition. With the adoption of ASC No. 842, Leases Topic 842, as of January 1, 2019 we recognize an adjustment to rental revenue if we deem it probable that the receivable will not be collected. Prior to the adoption of Topic 842, we recognized an allowance for doubtful accounts and bad debt expense of the specific rents receivable. Our review of collectability under our operating leases includes any accrued rental revenues related to the straight-line method of reporting rental revenue. As of September 30, 2020 and December 31, 2019, we had an allowance for uncollectible accounts of $15.5 million and $11.2 million, respectively. During the three months ending September 30, 2020 and 2019, we recorded an adjustment to rental revenue in the amount of $1.3 million and $0.5 million, respectively, and during the nine months ending September 30, 2020 and 2019, we recorded an adjustment to rental revenue in the amount of $4.5 million and $0.9 million, respectively. Included in the adjustment to rental revenue for the three and nine months ending September 30, 2020, was a bad debt adjustment of $0.7 million and $1.8 million, respectively, and a straight-line rent reserve adjustment of $0.1 million and $1.1 million, respectively, related to credit loss for the conversion of 12 and 84 tenants, respectively, to cash basis revenue as a result of COVID-19 collectability analysis.

Revenue Recognition. All leases on our properties are classified as operating leases, and the related rental income is recognized on a straight-line basis over the terms of the related leases. Differences between rental income earned and amounts due per the respective lease agreements are capitalized or charged, as applicable, to accrued rents and accounts receivable. Percentage rents are recognized as rental income when the thresholds upon which they are based have been met. Recoveries from tenants for taxes, insurance, and other operating expenses are recognized as revenues in the period the corresponding costs are incurred. We combine lease and nonlease components in lease contracts, which includes combining base rent, recoveries, and percentage rents into a single line item, Rental, within the consolidated statements of operations and comprehensive income (loss). Additionally, we have tenants who pay real estate taxes directly to the taxing authority. We exclude these costs paid directly by the tenant to third parties on our behalf from revenue recognized and the associated property operating expense.

Other property income primarily includes amounts recorded in connection with management fees and lease termination fees. Pillarstone OP pays us management fees for property management, leasing and day-to-day advisory and administrative services. Their obligations are satisfied over time. Pillarstone OP is billed monthly and typically pays quarterly. Revenues are governed by the Management Agreements (as defined in Note 6 (Investment in Real Estate Partnership)). Refer to Note 6 (Investment in Real Estate Partnership) for additional information regarding the Management Agreements with Pillarstone OP. Additionally, we recognize lease termination fees in the year that the lease is terminated and collection of the fee is probable. Amounts recorded within other property income are accounted for at the point in time when control of the goods or services transfers to the customer and our performance obligation is satisfied.

Recent Accounting Pronouncements. In April 2020, the FASB issued guidance on the application of Topic 842, relating to concessions being made by lessors in response to the COVID-19 pandemic. The guidance notes that it would be acceptable for entities to make an election to account for lease concessions relating to the effects of the COVID-19 pandemic consistent with how those concessions would be accounted for under Topic 842 as though enforceable rights and obligations for those concessions existed, even if such enforceable rights and obligations are not explicitly contained in the lease contract. Thus, for concessions relating to the COVID-19 pandemic, an entity would not have to analyze each contract to determine whether enforceable rights and obligations for concessions exist in the contract, and would have the option to apply, or not to apply, the general lease modification guidance in Topic 842 as it stands. We have elected this option to account for lease concessions relating to the effects of the COVID-19 pandemic consistent with how those concessions would be accounted for under Topic 842 as though enforceable rights and obligations for those concessions existed. Therefore, such concessions are not accounted for as a lease modification under Topic 842.

Effective January 1, 2019, we adopted the new lease accounting guidance in Topic 842. As the lessee and lessor, we have elected the package of practical expedients permitted in Topic 842. Accordingly, we have accounted for our existing operating leases as operating leases under the new guidance, without reassessing (a) whether the contract contains a lease under Topic 842, (b) whether classification of the operating lease would be different in accordance with Topic 842, or (c) whether the unamortized initial direct costs before transition adjustments (as of December 31, 2018) would have met the definition of initial direct costs in Topic 842 at lease commencement. Additionally, as the lessee and lessor we will use hindsight in determining the lease term and in assessing impairment of our right-of-use assets. As a result of the adoption of the new lease accounting guidance, as the lessee, we recognized on January 1, 2019 (a) a lease liability of approximately $1.1 million, which represents the present value of the remaining lease payments of approximately $1.2 million discounted using our incremental borrowing rate of 4.5%, and (b) a right-of-use asset of approximately $1.1 million. The adoption of Topic 842 did not have a material impact to our net income and related per share amounts.

•Apply Topic 842 to each lease that existed at the beginning of the earliest comparative period presented in the financial statements as well as leases that commenced after that date. Under this method, prior comparative periods presented are adjusted. For leases that commenced prior to the beginning of the earliest comparative period presented, a cumulative-effect adjustment is recognized at that date.

We have elected an optional transition method that allows entities to initially apply Topic 842 at January 1, 2019, the date of adoption, and to recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. As the lessor, we have not assessed unamortized legal costs as part of the package of practical expedients, and we will not make any adjustment to retained earnings at the date of adoption to write off unamortized legal costs. We continued to amortize unamortized legal costs as of December 31, 2018 over the life of the respective leases. We did not have a cumulative-effect adjustment as of the adoption date. Additionally, the optional transition method does allow us to not have to apply the new standard (including disclosure requirements) to comparative periods presented. Those periods can continue to be presented in accordance with prior generally accepted accounting principles.

Topic 842 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases and operating leases. Based on our election of the package of practical expedients, our existing commercial leases, where we are the lessor, continue to be accounted for as operating leases under the new standard. However, Topic 842 changed certain requirements regarding the classification of leases that could result in us recognizing certain long-term leases entered into or modified after January 1, 2019 as sales-type leases or finance leases, as opposed to operating leases. We will

We elected a practical expedient which allows lessors to not separate non-lease components from the lease component when the timing and pattern of transfer for the lease components and non-lease components are the same and if the lease component is classified as an operating lease. As a result, we now present all rentals and reimbursements from tenants as a single line item, Rental, within the consolidated statements of operations and comprehensive income (loss). For the three months ended September 30, 2020, we had rent revenues of $21.8 million and rental recoveries of $8.3 million compared to $21.6 million and $8.2 million, respectively, for the three months ended September 30, 2019. For the nine months ended September 30, 2020, we had rent revenues of $65.6 million and rental recoveries of $25.0 million compared to $64.8 million and $23.7 million, respectively, for the nine months ended September 30, 2019.

We review the collectability of charges under our tenant operating leases on a regular basis, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area where the property is located, including the impact of the COVID-19 pandemic on tenants’ businesses and financial condition. Each tenant is included in one of several portfolios and an allowance is calculated using the calculation methodology for the respective portfolio. With the adoption of Topic 842, we will recognize an adjustment to rental revenue if we deem it probable that the receivable will not be collected. Tenant portfolios will be converted to cash basis if collectability is of great concern. Prior to the adoption of Topic 842, we recognized an allowance for doubtful accounts and bad debt expense of the specific rents receivable. Our review of collectability under our operating leases includes any accrued rental revenues related to the straight-line method of reporting rental revenue.