Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Cash and Cash Equivalents Cash and cash equivalents include all cash and liquid investments with an initial maturity of three months or less. The carrying amount approximates fair value due to the short-term maturity of these investments. Restricted Cash Restricted cash represents cash proceeds from property sales that are being held by qualified intermediaries for purposes of facilitating tax-deferred like-kind exchanges under Section 1031 of the Internal Revenue Code (“1031 Exchange”). As of March 31, 2017, net proceeds of $6.5 million from the sale of our property located at 9375 Archibald Avenue (see Note 3) were included in restricted cash. Notes Receivable We record notes receivable at the unpaid principal balance, net of any deferred origination fees, purchase discounts or premiums and valuation allowances, as applicable. We amortize net deferred origination fees, which are comprised of loan fees collected from the borrower, and purchase discounts or premiums over the contractual life of the loan using the effective interest method and immediately recognize in income any unamortized balances if the loan is repaid before its contractual maturity. On July 1, 2016, we made a $6.0 million mortgage loan secured by a 64,965 rentable square foot industrial property located in Rancho Cucamonga, California. In connection with this origination, we collected a $0.3 million loan fee from the borrower. The loan bears interest at 10% per annum and matures on June 30, 2017 , with one additional six -month extension option available. The borrower has the option to voluntarily prepay any amounts outstanding under the loan at any time, in whole or in part, subject to certain notice requirements, provided that we have received at least six months of interest payments in aggregate, notwithstanding the date of such prepayment. In addition, the borrower has the option to defer up to $14 thousand of interest, otherwise payable per month, to be added to the principal to be paid in full on the maturity date. As of March 31, 2017 , the note had a carrying value of $6.1 million , which represented the original principal amount of $6.0 million , plus $0.2 million of accrued interest added to the principal, less the unamortized origination fee balance of $0.1 million . Investments in Real Estate Acquisitions On January 5, 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-01, Business Combinations - Clarifying the Definition of a Business (“ASU 2017-01’), which provides a new framework for determining whether transactions should be accounted for as acquisitions of assets or businesses. ASU 2017-01 clarifies that when substantially all of the fair value of the gross assets acquired or disposed of is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is not a business. ASU 2017-01 also revises the definition of a business to include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create an output. ASU 2017-01 is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years, and early adoption is permitted. Effective January 1, 2017, we early adopted ASU 2017-01. We evaluated the acquisition that we completed during the three months ended March 31, 2017, and determined that under the new framework the transaction should be accounted for as an asset acquisition. See Note 3. We evaluate each of our property acquisitions to determine whether the acquired set of assets and activities (collectively referred to as a “set”) meets the definition of a business and will need to be accounted for as a business combination. A set would fail to qualify as a business if either (i) substantially all of the fair value of the gross assets acquired is concentrated in either a single identifiable asset or a group of similar identifiable assets or (ii) the set is lacking, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs. An acquired process is considered substantive if (i) the process includes an organized workforce (or includes an acquired contract that provides access to an organized workforce), that is skilled, knowledgeable, and experienced in performing the process, (ii) the process cannot be replaced without significant cost, effort, or delay or (iii) the process is considered unique or scarce. We expect that most of our property acquisitions will generally not meet the revised definition of a business because substantially all of the fair value is concentrated in a single identifiable asset or group of similar identifiable assets or because the acquisition does not include a substantive process. When we acquire a property that meets the business combination accounting criteria, we allocate the purchase price to the various components of the acquisition based upon the fair value of each component on the acquisition date. The components typically include land, building and improvements, tenant improvements, intangible assets related to above and below market leases, intangible assets related to in-place leases, debt and other assumed assets and liabilities. Acquisition related costs are expensed as incurred. Because of the timing or complexity of completing certain fair value adjustments, the initial purchase price allocation may be incomplete at the end of a reporting period, in which case we may record provisional purchase price allocation amounts based on information available at the acquisition date. Subsequent adjustments to provisional amounts are recognized during the measurement period, which cannot exceed one year from the date of acquisition. For acquisitions that do not meet the business combination accounting criteria, we allocate the cost of the acquisition, which includes any associated acquisition costs, to the individual assets and liabilities assumed on a relative fair value basis. As there is no measurement period concept for an asset acquisition, the allocated cost of the acquired assets should be finalized in the period in which the acquisition occurred. We determine the fair value of the tangible assets of an acquired property by valuing the property as if it were vacant. This “as-if vacant” value is estimated using an income, or discounted cash flow, approach that relies upon Level 3 inputs, which are unobservable inputs based on the Company’s assumptions about the assumptions a market participant would use. These Level 3 inputs include discount rates, capitalization rates, market rents and comparable sales data for similar properties. Estimates of future cash flows are based on a number of factors including historical operating results, known and anticipated trends, and market and economic conditions. In determining the “as-if-vacant” value for the property we acquired during the three months ended March 31, 2017 , we used a discount rate of 9.50% and capitalization rate of 7.50% . In determining the fair value of intangible lease assets or liabilities, we also consider Level 3 inputs. Acquired above- and below-market leases are valued based on the present value of the difference between prevailing market rates and the in-place rates measured over a period equal to the remaining term of the lease for above-market leases and the initial term plus the term of any below-market fixed rate renewal options for below-market leases, if applicable. The estimated fair value of acquired in-place at-market tenant leases are the costs that would have been incurred to lease the property to the occupancy level of the property at the date of acquisition. Such estimates include the value associated with leasing commissions, legal and other costs, as well as the estimated period necessary to lease such property that would be incurred to lease the property to its occupancy level at the time of its acquisition. The property that we acquired during the three months ended March 31, 2017, was purchased vacant, and as a result, we did not allocate any value to acquired lease intangible assets or liabilities. The difference between the fair value and the face value of debt assumed in connection with an acquisition is recorded as a premium or discount and amortized to “interest expense” over the life of the debt assumed. The valuation of assumed liabilities is based on our estimate of the current market rates for similar liabilities in effect at the acquisition date. Capitalization of Costs We capitalize direct costs incurred in developing, renovating, rehabilitating and improving real estate assets as part of the investment basis. This includes certain general and administrative costs, including payroll, bonus and non-cash equity compensation of the personnel performing development, renovations and rehabilitation if such costs are identifiable to a specific activity to get the real estate asset ready for its intended use. During the development and construction periods of a project, we also capitalize interest, real estate taxes and insurance costs. We cease capitalization of costs upon substantial completion of the project, but no later than one year from cessation of major construction activity. If some portions of a project are substantially complete and ready for use and other portions have not yet reached that stage, we cease capitalizing costs on the completed portion of the project but continue to capitalize for the incomplete portion of the project. Costs incurred in making repairs and maintaining real estate assets are expensed as incurred. We capitalized interest costs of $0.5 million and $0.4 million during the three months ended March 31, 2017 and 2016 , respectively. We capitalized real estate taxes and insurance costs aggregating $0.3 million and $0.2 million during the three months ended March 31, 2017 and 2016 , respectively. We capitalized compensation costs for employees who provide construction services of $0.4 million and $0.2 million during the three months ended March 31, 2017 and 2016 , respectively. Depreciation and Amortization Real estate, including land, building and land improvements, tenant improvements, furniture, fixtures and equipment and intangible lease assets and liabilities are stated at historical cost less accumulated depreciation and amortization, unless circumstances indicate that the cost cannot be recovered, in which case, the carrying value of the property is reduced to estimated fair value as discussed below in our policy with regards to impairment of long-lived assets. We estimate the depreciable portion of our real estate assets and related useful lives in order to record depreciation expense. The values allocated to buildings, site improvements, in-place lease intangibles and tenant improvements are depreciated on a straight-line basis using an estimated remaining life of 10-30 years for buildings, 5-20 years for site improvements, and the shorter of the estimated useful life or respective lease term for in-place lease intangibles and tenant improvements. As discussed above in— Investments in Real Estate—Acquisitions , in connection with property acquisitions, we may acquire leases with rental rates above or below the market rental rates. Such differences are recorded as an acquired lease intangible asset or liability and amortized to “rental income” over the remaining term of the related leases. Our estimate of the useful life of our assets is evaluated upon acquisition and when circumstances indicate a change in the useful life has occurred, which requires significant judgment regarding the economic obsolescence of tangible and intangible assets. Deferred Leasing Costs We capitalize costs directly related to the successful origination of a lease. These costs include leasing commissions paid to third parties for new leases or lease renewals, as well as an allocation of compensation costs, including payroll, bonus and non-cash equity compensation of employees who spend time on lease origination activities. In determining the amount of compensation costs to be capitalized for these employees, allocations are made based on estimates of the actual amount of time spent working on successful leases in comparison to time spent on unsuccessful origination efforts. We capitalized compensation costs for these employees of $0.2 million and $0.1 million during the three months ended March 31, 2017 and 2016 , respectively. Impairment of Long-Lived Assets In accordance with the provisions of the Impairment or Disposal of Long-Lived Assets Subsections of ASC Topic 360: Property, Plant, and Equipment, we assess the carrying values of our respective long-lived assets, including goodwill, whenever events or changes in circumstances indicate that the carrying amounts of these assets may not be fully recoverable. Recoverability of real estate assets is measured by comparison of the carrying amount of the asset to the estimated future undiscounted cash flows. In order to review real estate assets for recoverability, we consider current market conditions as well as our intent with respect to holding or disposing of the asset. The intent with regards to the underlying assets might change as market conditions and other factors change. Fair value is determined through various valuation techniques; including discounted cash flow models, applying a capitalization rate to estimated net operating income of a property, quoted market values and third party appraisals, where considered necessary. The use of projected future cash flows is based on assumptions that are consistent with estimates of future expectations and the strategic plan used to manage our underlying business. If our analysis indicates that the carrying value of the real estate asset is not recoverable on an undiscounted cash flow basis, we will recognize an impairment charge for the amount by which the carrying value exceeds the current estimated fair value of the real estate property. Assumptions and estimates used in the recoverability analyses for future cash flows, discount rates and capitalization rates are complex and subjective. Changes in economic and operating conditions or our intent with respect to our investment that occur subsequent to our impairment analyses could impact these assumptions and result in future impairment of our real estate properties. Investment in Unconsolidated Real Estate Entities Investment in unconsolidated real estate entities in which we have the ability to exercise significant influence (but not control) are accounted for under the equity method of investment. Under the equity method, we initially record our investment at cost, and subsequently adjust for equity in earnings or losses and cash contributions and distributions. Any difference between the carrying amount of these investments on the balance sheet and the underlying equity in net assets is amortized as an adjustment to equity in income (loss) from unconsolidated real estate entities over the life of the related asset. Under the equity method of accounting, our net equity investment is reflected within the consolidated balance sheets, and our share of net income or loss from the joint venture is included within the consolidated statements of operations. Furthermore, distributions received from equity method investments are classified as either operating cash inflows or investing cash inflows in the consolidated statements of cash flows using the “nature of the distribution approach,” in which each distribution is evaluated on the basis of the source of the payment. See Note 11. Income Taxes We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”) commencing with our initial taxable year ended December 31, 2013. To qualify as a REIT, we are required (among other things) to distribute at least 90% of our REIT taxable income to our stockholders and meet the various other requirements imposed by the Code relating to matters such as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided we qualify for taxation as a REIT, we are generally not subject to corporate-level income tax on the earnings distributed currently to our stockholders. If we fail to qualify as a REIT in any taxable year, and were unable to avail ourselves of certain savings provisions set forth in the Code, all of our taxable income would be subject to federal income tax at regular corporate rates, including any applicable alternative minimum tax. In addition, we are subject to taxation by various state and local jurisdictions, including those in which we transact business or reside. Our non-taxable REIT subsidiaries, including our Operating Partnership, are either partnerships or disregarded entities for federal income tax purposes. Under applicable federal and state income tax rules, the allocated share of net income or loss from disregarded entities and flow-through entities such as partnerships is reportable in the income tax returns of the respective equity holders. Accordingly, no income tax provision is included in the accompanying consolidated financial statements for the three months ended March 31, 2017 and 2016 . We periodically evaluate our tax positions to determine whether it is more likely than not that such positions would be sustained upon examination by a tax authority for all open tax years, as defined by the statute of limitations, based on their technical merits. As of March 31, 2017 , and December 31, 2016 , we have not established a liability for uncertain tax positions. Derivative Instruments and Hedging Activities FASB ASC Topic 815: Derivatives and Hedging (“ASC 815”), provides the disclosure requirements for derivatives and hedging activities with the intent to provide users of financial statements with an enhanced understanding of: (a) how and why an entity uses derivative instruments, (b) how the entity accounts for derivative instruments and related hedged items, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Further, qualitative disclosures are required that explain the Company’s objectives and strategies for using derivatives, as well as quantitative disclosures about the fair value of and gains and losses on derivative instruments, and disclosures about credit-risk-related contingent features in derivative instruments. As required by ASC 815, we record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, and whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. We may enter into derivative contracts that are intended to economically hedge certain risks, even though hedge accounting does not apply or we elect not to apply hedge accounting. See Note 7. Revenue Recognition We recognize revenue from rent, tenant reimbursements and other revenue sources once all of the following criteria are met: persuasive evidence of an arrangement exists, the delivery has occurred or services rendered, the fee is fixed and determinable and collectability is reasonably assured. Minimum annual rental revenues are recognized in rental revenues on a straight-line basis over the term of the related lease. Rental revenue recognition commences when the tenant takes possession or controls the physical use of the leased space. Estimated reimbursements from tenants for real estate taxes, common area maintenance and other recoverable operating expenses are recognized as revenues in the period that the expenses are incurred. Subsequent to year-end, we perform final reconciliations on a lease-by-lease basis and bill or credit each tenant for any cumulative annual adjustments. Lease termination fees, which are included in rental income in the accompanying consolidated statements of operations, are recognized when the related lease is canceled and we have no continuing obligation to provide services to such former tenant. Revenues from management, leasing and development services are recognized when the related services have been provided and earned. The recognition of gains on sales of real estate requires us to measure the timing of a sale against various criteria related to the terms of the transaction, as well as any continuing involvement in the form of management or financial assistance associated with the property. If the sales criteria are not met, we defer gain recognition and account for the continued operations of the property by applying the finance, profit-sharing or leasing method. If the sales criteria have been met, we further analyze whether profit recognition is appropriate using the full accrual method. If the criteria to recognize profit using the full accrual method have not been met, we defer the gain and recognize it when the criteria are met or use the installment or cost recovery method as appropriate under the circumstances. Valuation of Receivables We may be subject to tenant defaults and bankruptcies that could affect the collection of outstanding receivables. In order to mitigate these risks, we perform credit reviews and analyses on prospective tenants before significant leases are executed and on existing tenants before properties are acquired. We specifically analyze aged receivables, customer credit-worthiness, historical bad debts and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. As a result of our periodic analysis, we maintain an allowance for estimated losses that may result from the inability of our tenants to make required payments. This estimate requires significant judgment related to the lessees’ ability to fulfill their obligations under the leases. We believe our allowance for doubtful accounts is adequate for our outstanding receivables for the periods presented. If a tenant is insolvent or files for bankruptcy protection and fails to make contractual payments beyond any allowance, we may recognize additional bad debt expense in future periods equal to the net outstanding balances, which include amounts recognized as straight-line revenue not realizable until future periods. Rents and other receivables, net and deferred rent receivable, net consisted of the following as of March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 December 31, 2016 Rents and other receivables $ 5,109 $ 5,565 Allowance for doubtful accounts (2,188 ) (2,816 ) Rents and other receivables, net $ 2,921 $ 2,749 Deferred rent receivable $ 12,844 $ 11,903 Allowance for doubtful accounts (51 ) (30 ) Deferred rent receivable, net $ 12,793 $ 11,873 We recorded the following provision for doubtful accounts, including amounts related to deferred rents, as a reduction to rental revenues in our consolidated statements of operations for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended March 31, 2017 2016 Provision for doubtful accounts $ 326 $ 465 Equity Based Compensation We account for equity based compensation in accordance with ASC Topic 718 Compensation - Stock Compensation . Total compensation cost for all share-based awards is based on the estimated fair market value on the grant date. For share-based awards that vest based solely on a service condition, we recognize compensation cost on a straight-line basis over the total requisite service period for the entire award. For share-based awards that vest based on a market or performance condition, we recognize compensation cost on a straight-line basis over the requisite service period of each separately vesting tranche. Forfeitures are recognized in the period in which they occur. See Note 12. Equity Offering Costs Underwriting commissions and offering costs related to our common stock issuances have been reflected as a reduction of additional paid-in capital. Underwriting commissions and offering costs related to our preferred stock issuance have been reflected as a direct reduction of the preferred stock balance. Earnings Per Share We calculate earnings per share (“EPS”) in accordance with ASC 260 - Earnings Per Share (“ASC 260”). Under ASC 260, nonvested share-based payment awards that contain non-forfeitable rights to dividends are participating securities and, therefore, are included in the computation of basic EPS pursuant to the two-class method. The two-class method determines EPS for each class of common stock and participating securities according to dividends declared (or accumulated) and their respective participation rights in undistributed earnings. Basic EPS is calculated by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period. Diluted EPS is calculated by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding determined for the basic EPS computation plus the effect of any dilutive securities. We include unvested shares of restricted stock and unvested LTIP units in the computation of diluted EPS by using the more dilutive of the two-class method or treasury stock method. We include unvested performance units as contingently issuable shares in the computation of diluted EPS once the market criteria are met, assuming that the end of the reporting period is the end of the contingency period. Any anti-dilutive securities are excluded from the diluted EPS calculation. See Note 13. Segment Reporting Management views the Company as a single reportable segment based on its method of internal reporting in addition to its allocation of capital and resources. Recently Issued Accounting Pronouncements Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. We consider the applicability and impact of all ASUs. On February 25, 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”), which requires lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. The ASU also requires lessees to classify leases as either finance or operating leases based on whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification is used to evaluate whether the lease expense should be recognized based on an effective interest method or on a straight-line basis over the term of the lease. Additionally, ASU 2016-02 will require that lessees and lessors capitalize, as initial direct costs, only these costs that are incurred due to the execution of a lease. As a result, compensation costs related to employees who spend time on lease origination activities, regardless of whether their time leads to a successful lease, will no longer be capitalized as initial direct costs and instead will be expensed as incurred. Lessors will continue to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. ASU 2016-02 is effective for annual periods beginning after December 15, 2018, and early adoption is permitted. ASU 2016-02 requires the use of a modified retrospective approach for all leases existing at, or entered into after, the beginning of the earliest period presented in the consolidated financial statements, with certain practical expedients available. We are currently assessing the impact of the guidance on our consolidated financial statements and notes to our consolidated financial statements. On May 28, 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). ASU 2014-09 establishes principles for reporting the nature, amount, timing and uncertainty of revenues and cash flows arising from an entity’s contracts with customers. The core principle of the new standard is that an entity recognizes revenue to represent the transfer of 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. ASU 2014-09 does not apply to lease contracts within the scope of Leases (Topic 840) except to the extent the lease contract contains non-leasing components. For public entities, ASU 2014-09 is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2017. Early application is permitted for annual periods beginning after December 15, 2016. ASU 2014-09 permits the use of either the full retrospective transition method or a modified retrospective transition method. We expect to adopt ASU 2014-09 on January 1, 2018, using the modified retrospective transition method, and are currently evaluating the effect that the guidance will have on our consolidated financial statements and notes to our consolidated financial statements. Adoption of New Accounting Pronouncements On November 17, 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash (“ASU 2016-18”), which requires an entity’s reconciliation of the beginning of period and end of period amounts shown in the statement of cash flows to include with cash and cash equivalents, amounts generally described as restricted cash and restricted cash equivalents. ASU 2016-18 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, adjustments should be reflected at the beginning of the fiscal year that includes that interim period. We early adopted ASU 2016-18, effective January 1, 2017. As a result of the adoption, we have included restricted cash with cash and cash equivalents in our reconciliation of beginning of period and end of period amounts shown in our consolidated statements of cash flows. The adoption of ASU 2016-18 did not affect our statement of cash flows presentation for the three months ended March 31, 2016, as we did not have any restricted cash. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows: March 31, 2017 Cash and cash equivalents 11,676 Restricted cash 6,537 Cash, cash equivalents and restricted cash, end of period $ 18,213 On August 26, 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”), which addresses certain classification issues related to the statement of cash flows, including: (i) debt prepayment or debt extinguishment costs, (ii) contingent consideration payments made after a business combination and (iii) distributions received from equity method investees. ASU 2016-15 is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2017. Early adoption is permitted, including adoption in an interim period. We early adopted ASU 2016-15, effective July 1, 2016, and elected, as part of the adoption, to classify distributions received from equity method investe |