SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The summary of significant accounting policies presented below is designed to assist in understanding the Company’s condensed consolidated financial statements. These accounting policies conform to accounting principles generally accepted in the United States of America (“GAAP”), in all material respects, and have been consistently applied in preparing the accompanying condensed consolidated financial statements. Principles of Consolidation and Basis of Presentation The condensed consolidated financial statements of the Company have been prepared in accordance with the rules and regulations of the SEC regarding interim financial reporting, including the instructions to Form 10-Q and Article 10 of Regulation S-X, and do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the statements for the interim periods presented include all adjustments, which are of a normal and recurring nature, necessary for a fair presentation of the results for such periods. Results for these interim periods are not necessarily indicative of full year results. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the Company’s audited consolidated financial statements as of and for the year ended December 31, 2017 , and related notes thereto, set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . The condensed consolidated financial statements should also be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in this Quarterly Report on Form 10-Q. The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Reclassifications Certain amounts in the Company’s prior period condensed consolidated financial statements have been reclassified to conform to the current period presentation. In connection with the adoption of Accounting Standards Update (“ASU”) No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash , transfers to or from restricted cash, which have previously been shown in the Company’s investing activities section of the condensed consolidated statements of cash flows, are now required to be shown as part of the total change in cash, cash equivalents and restricted cash in the condensed consolidated statements of cash flows. This change resulted in a decrease in cash flows from investing activities of $253,000 during the nine months ended September 30, 2017 . The Company adopted ASU 2017-12, as defined in “Recent Accounting Pronouncements,” during the first quarter of fiscal year 2018. Accordingly, for the nine months ended September 30, 2018 , the Company recorded a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of accumulated distributions in excess of earnings of $32,000 . Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Real Estate Assets Real estate assets are stated at cost, less accumulated depreciation and amortization. The Company considers the period of future benefit of each respective asset to determine the appropriate useful life. The estimated useful lives of the Company’s real estate assets by class are generally as follows: Buildings 40 years Site improvements 15 years Tenant improvements Lesser of useful life or lease term Intangible lease assets Lease term Recoverability of Real Estate Assets The Company continually monitors events and changes in circumstances that could indicate that the carrying amounts of its real estate assets may not be recoverable. Impairment indicators that the Company considers include, but are not limited to: bankruptcy or other credit concerns of a property’s major tenant, such as a history of late payments, rental concessions and other factors; a significant decrease in a property’s revenues due to lease terminations; vacancies; co-tenancy clauses; reduced lease rates; changes in anticipated holding periods; or other circumstances. When indicators of potential impairment are present, the Company assesses the recoverability of the assets by determining whether the carrying amount of the assets will be recovered through the undiscounted future cash flows expected from the use of the assets and their eventual disposition. In the event that such expected undiscounted future cash flows do not exceed the carrying amount, the Company will adjust the real estate assets to their respective fair values and recognize an impairment loss. Generally, fair value will be determined using a discounted cash flow analysis and recent comparable sales transactions. No impairment indicators were identified and no impairment losses were recorded during the nine months ended September 30, 2018 or 2017 . The Company is in the process of determining if anticipated holding periods for certain properties may materially differ from the initial intended holding periods for such properties, which could result in an impairment charge in the future. Assets Held for Sale When a real estate asset is identified by the Company as held for sale, the Company will cease recording depreciation and amortization of the assets related to the property and estimate its fair value, net of selling costs. If, in management’s opinion, the fair value, net of selling costs, of the asset is less than the carrying amount of the asset, an adjustment to the carrying amount is then recorded to reflect the estimated fair value of the property, net of selling costs. There were no assets identified as held for sale as of September 30, 2018 or December 31, 2017 . Allocation of Purchase Price of Real Estate Assets Upon the acquisition of real properties, the Company allocates the purchase price to acquired tangible assets, consisting of land, buildings and improvements, and to identified intangible assets and liabilities, consisting of the value of above- and below-market leases and the value of in-place leases and other intangibles, based in each case on their respective fair values. The Company utilizes independent appraisals to assist in the determination of the fair values of the tangible assets of an acquired property (which includes land and buildings). The information in the appraisal, along with any additional information available to the Company’s management, is used in estimating the amount of the purchase price that is allocated to land. Other information in the appraisal, such as building value and market rents, may be used by the Company’s management in estimating the allocation of purchase price to the building and to intangible lease assets and liabilities. The appraisal firm has no involvement in management’s allocation decisions other than providing this market information. The determination of the fair values of the real estate assets and liabilities acquired requires the use of significant assumptions with regard to the current market rental rates, rental growth rates, capitalization and discount rates, interest rates and other variables. The use of alternative estimates may result in a different allocation of the Company’s purchase price, which could materially impact the Company’s results of operations. In April 2017, the Company elected to early adopt ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (“ASU 2017-01”), which clarifies the definition of a business by adding guidance to assist entities in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Beginning in April 2017, all real estate acquisitions qualified as asset acquisitions and, as such, acquisition-related fees and certain acquisition-related expenses related to these asset acquisitions were capitalized and allocated to tangible and intangible assets and liabilities, as described above. Prior to the adoption of ASU 2017-01 in April 2017, all of the Company’s real estate acquisitions were accounted for as business combinations, and as such, acquisition-related expenses related to these business combination acquisitions were expensed as incurred. Prior to April 2017, acquisition-related expenses in the Company’s condensed consolidated statements of operations primarily consisted of legal, deed transfer and other costs related to real estate purchase transactions, including costs incurred for deals that were not consummated. The Company expects its future acquisitions to qualify as asset acquisitions and, as such, the Company will allocate the purchase price to acquired tangible assets and identified intangible assets and liabilities on a relative fair value basis. Restricted Cash The Company had $387,000 and $346,000 in restricted cash as of September 30, 2018 and December 31, 2017 , respectively. Included in restricted cash was $94,000 held by lenders in lockbox accounts as of December 31, 2017 . No such amounts were included in restricted cash as of September 30, 2018 . As part of certain debt agreements, rent from certain of the Company’s tenants is deposited directly into a lockbox account, from which the monthly debt service payments are disbursed to the lender and the excess funds are disbursed to the Company. Restricted cash also included $293,000 and $2,000 held by lenders in escrow accounts in accordance with the associated lender’s loan agreement as of September 30, 2018 and December 31, 2017 , respectively, as well as $94,000 and $250,000 in lender cash management accounts as of September 30, 2018 and December 31, 2017 , respectively. Revenue Recognition Certain properties have leases where the minimum rental payment increases during the term of the lease. The Company records rental income for the full term of each lease on a straight-line basis when earned and collectability is reasonably assured. When the Company acquires a property, the terms of existing leases are considered to commence as of the acquisition date for the purpose of this calculation. The Company defers the recognition of contingent rental income, such as percentage rents, until the specific target that triggers the contingent rental income is achieved. Expected reimbursements from tenants for recoverable real estate taxes and operating expenses are included in tenant reimbursement income in the period when such costs are incurred. Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”), which supersedes the revenue recognition requirements in Revenue Recognition, Accounting Standards Codification (“ASC”) Topic 605 and requires an entity to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company records revenue for real estate taxes and insurance reimbursed by its tenants on the leased properties, with offsetting expenses in real estate taxes and property operating expenses, respectively, within the condensed consolidated statements of operations as the Company has concluded it is the primary obligor. The Company has identified its revenue streams as rental income from leasing arrangements and tenant reimbursement income, which are outside of the scope of Topic 606. The Company adopted ASU 2014-09 using the modified retrospective approach and determined it did not have a material impact on the Company’s condensed consolidated financial statements. The Company continually reviews receivables related to rent, including any straight-line rent, and current and future operating expense reimbursements from tenants, and determines their collectability by taking into consideration 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 in which the property is located. In the event that the collectability of a receivable is uncertain, the Company will record an increase in the allowance for uncollectible accounts. As of September 30, 2018 and December 31, 2017 , the Company had an allowance for uncollectible accounts of $18,000 and $40,000 , respectively. Earnings (Loss) and Distributions Per Share The Company has two classes of common stock. Accordingly, the Company utilizes the two-class method to determine its earnings per share, which can result in different earnings per share for each of the classes. Under the two-class method, earnings per share of each class of common stock are computed by dividing the sum of the distributed earnings to common stockholders and undistributed earnings allocated to common stockholders by the weighted average number of shares for each class of common stock for the respective period. The distributed earnings to Class T Share common stockholders represents distributions declared less the distribution and stockholder servicing fees. Diluted income (loss) per share considers the effect of any potentially dilutive share equivalents, of which the Company had none for each of the three and nine months ended September 30, 2018 and 2017 . Distributions per share are calculated based on the authorized daily distribution rate. Recent Accounting Pronouncements From time to time, new accounting pronouncements are issued by various standard setting bodies that may have an impact on the Company’s accounting and reporting. Except as otherwise stated below, the Company is currently evaluating the effect that certain new accounting requirements may have on the Company’s accounting and related reporting and disclosures in the Company’s condensed consolidated financial statements. In February 2016, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). The amendments in this update require that most lease obligations be recognized as a right of use asset with a corresponding liability on the balance sheet. The guidance also requires additional qualitative and quantitative disclosures to assess the amount, timing and uncertainty of cash flows arising from leases. ASU 2016-02 and subsequent amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. The guidance, including optional practical expedients, should be implemented for the earliest period presented using a modified retrospective approach. The Company is currently in the process of finalizing its assessment of its inventory of leases that will be impacted by adoption of the new guidance. The Company does not expect the adoption to have a material impact on the accounting treatment of the Company’s net leases, which are the primary source of the Company’s revenues. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities (“ASU 2017-12”). The targeted amendments in this ASU are designed to help simplify certain aspects of hedge accounting and result in a more accurate portrayal of the economics of an entity’s risk management activities in its financial statements. ASU 2017-12 applies to the Company’s interest rate swaps designated as cash flow hedges. ASU 2017-12 requires all changes in the fair value of highly effective cash flow hedges to be recorded in accumulated other comprehensive income. Under current GAAP, the ineffective portion of the change in fair value of cash flow hedges is recognized directly in earnings. This eliminates the requirement to separately measure and disclose ineffectiveness for qualifying cash flow hedges. ASU 2017-12 is effective for public entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. ASU 2017-12 is required to be adopted using a modified retrospective approach with early adoption permitted. The Company early adopted ASU 2017-12 during the first quarter of fiscal year 2018. Accordingly, during the nine months ended September 30, 2018 , the Company recorded a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of accumulated distributions in excess of earnings of $32,000 . In August 2018, the FASB issued ASU No. 2018-13, Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). This ASU amends and removes several disclosure requirements including the valuation processes for Level 3 fair value measurements. ASU 2018-13 also modifies some disclosure requirements and requires additional disclosures for changes in unrealized gains and losses included in other comprehensive income for recurring Level 3 fair value measurements and requires the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The provisions of ASU 2018-13 are effective January 1, 2020 using a prospective transition method for amendments effecting changes in unrealized gains and losses, significant unobservable inputs used to develop Level 3 fair value measurements and narrative description on uncertainty of measurements. The remaining provisions of the ASU are to be applied retrospectively, and early adoption is permitted. The Company is evaluating the impact of this ASU's adoption, and does not believe this ASU will have a material impact on its condensed consolidated financial statements. |