BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation —The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP"). Principles of Consolidation —The consolidated financial statements include the accounts of CIM Commercial and its subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Investments in Real Estate —Real estate acquisitions are recorded at cost as of the acquisition date. Costs related to the acquisition of properties are expensed as incurred for acquisitions that occurred prior to October 1, 2017. For acquisitions occurring on or after October 1, 2017, we will conduct an analysis to determine if the acquisition constitutes a business combination or an asset purchase. If the acquisition constitutes a business combination, then transaction costs will be expensed as incurred, and if the acquisition constitutes an asset purchase, then transaction costs will be capitalized. Investments in real estate are stated at depreciated cost. Depreciation and amortization are recorded on a straight line basis over the estimated useful lives as follows: Buildings and improvements 15 - 40 years Furniture, fixtures, and equipment 3 - 5 years Tenant improvements Shorter of the useful lives or the terms of the related leases Improvements and replacements are capitalized when they extend the useful life, increase capacity, or improve the efficiency of the asset. Ordinary repairs and maintenance are expensed as incurred. Investments in real estate are evaluated for impairment on a quarterly basis or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount to the future net cash flows, undiscounted and without interest, expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the estimated fair value of the assets. The estimated fair value of the asset group identified for step two of the impairment testing under GAAP is based on either the income approach with market discount rate, terminal capitalization rate and rental rate assumptions being most critical, or on the sales comparison approach to similar properties. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell. We recognized impairment of long-lived assets of $13,100,000 , $0 and $0 during the years ended December 31, 2017 , 2016 and 2015 , respectively (Note 3). Cash and Cash Equivalents —Cash and cash equivalents include short-term liquid investments with initial maturities of three months or less. Restricted Cash —Our mortgage loan and hotel management agreements provide for depositing cash into restricted accounts reserved for capital expenditures, free rent, tenant improvement and leasing commission obligations. Restricted cash also includes cash required to be segregated in connection with certain of our loans receivable. Loans Receivable —Our loans receivable are carried at their unamortized principal balance less unamortized acquisition discounts and premiums, retained loan discounts and loan loss reserves. For loans originated under the Small Business Administration's ("SBA") 7(a) Guaranteed Loan Program ("SBA 7(a) Program"), we sell the portion of the loan that is guaranteed by the SBA. Upon sale of the SBA guaranteed portion of the loans, which are accounted for as sales, the unguaranteed portion of the loan retained by us is valued on a fair value basis and a discount (the "Retained Loan Discount") is recorded as a reduction in basis of the retained portion of the loan. At the Acquisition Date, the carrying value of our loans was adjusted to estimated fair market value and acquisition discounts of $33,907,000 were recorded, which are being accreted to interest and other income using the effective interest method. We sold substantially all of our commercial mortgage loans with unamortized acquisition discounts of $15,951,000 to an unrelated third-party in December 2015 (Note 7). Acquisition discounts of $1,301,000 remained as of December 31, 2017 , which have not yet been accreted to income. A loan receivable is generally classified as non-accrual (a "Non-Accrual Loan") if (i) it is past due as to payment of principal or interest for a period of 60 days or more, (ii) any portion of the loan is classified as doubtful or is charged-off or (iii) the repayment in full of the principal and/or interest is in doubt. Generally, loans are charged-off when management determines that we will be unable to collect any remaining amounts due under the loan agreement, either through liquidation of collateral or other means. Interest income, included in interest and other income or discontinued operations, on a Non-Accrual Loan is recognized on either the cash basis or the cost recovery basis. On a quarterly basis, and more frequently if indicators exist, we evaluate the collectability of our loans receivable. Our evaluation of collectability involves judgment, estimates, and a review of the ability of the borrower to make principal and interest payments, the underlying collateral and the borrowers' business models and future operations in accordance with Accounting Standards Codification ("ASC") 450-20, Contingencies—Loss Contingencies , and ASC 310-10, Receivables . For the years ended December 31, 2017 , 2016 and 2015 , we recorded $97,000 , $(206,000) and $328,000 impairment (recovery) on our loans receivable, respectively. We establish a general loan loss reserve when available information indicates that it is probable a loss has occurred based on the carrying value of the portfolio and the amount of the loss can be reasonably estimated. Significant judgment is required in determining the general loan loss reserve, including estimates of the likelihood of default and the estimated fair value of the collateral. The general loan loss reserve includes those loans, which may have negative characteristics which have not yet become known to us. In addition to the reserves established on loans not considered impaired that have been evaluated under a specific evaluation, we establish the general loan loss reserve using a consistent methodology to determine a loss percentage to be applied to loan balances. These loss percentages are based on many factors, primarily cumulative and recent loss history and general economic conditions. Accounts Receivable —Accounts receivable are carried net of the allowances for uncollectible amounts. Management's determination of the adequacy of these allowances is based primarily upon evaluation of historical loss experience, individual receivables, current economic conditions, and other relevant factors. The allowances are increased or decreased through the provision for bad debts. The allowance for uncollectible accounts receivable was $181,000 and $876,000 as of December 31, 2017 and 2016 , respectively. Deferred Rent Receivable and Charges —Deferred rent receivable and charges consist of deferred rent, deferred leasing costs, deferred offering costs (Note 11) and other deferred costs. Deferred rent receivable is $52,619,000 and $64,010,000 at December 31, 2017 and 2016 , respectively. Deferred leasing costs, which represent lease commissions and other direct costs associated with the acquisition of tenants, are capitalized and amortized on a straight-line basis over the terms of the related leases. Deferred leasing costs of $52,414,000 and $76,063,000 are presented net of accumulated amortization of $23,807,000 and $25,914,000 at December 31, 2017 and 2016 , respectively. Deferred offering costs represent direct costs incurred in connection with our offering of Series A Preferred Units (as defined in Note 11), excluding costs specifically identifiable to a closing, such as commissions, dealer-manager fees, and other registration fees. For a specific issuance of Series A Preferred Units, associated offering costs are reclassified as a reduction of proceeds raised on the issuance date. Offering costs incurred but not directly related to a specifically identifiable closing are deferred. Deferred offering costs are first allocated to each issuance on a pro-rata basis equal to the ratio of Series A Preferred Units issued in an issuance to the maximum number of Series A Preferred Units that are expected to be issued. Then, the deferred offering costs allocated to such issuance are further allocated to the Series A Preferred Stock (as defined in Note 11) and Series A Preferred Warrants (as defined in Note 11) issued in such issuance based on the relative fair value of the instruments on the date of issuance. The deferred offering costs allocated to the Series A Preferred Stock and Series A Preferred Warrants are reductions to temporary equity and permanent equity, respectively. Deferred offering costs of $3,401,000 and $2,060,000 related to our offering of Series A Preferred Units are included in deferred rent receivable and charges at December 31, 2017 and 2016 , respectively. Other deferred costs are $121,000 and $135,000 at December 31, 2017 and 2016 , respectively. Noncontrolling Interests —Noncontrolling interests represent the interests in various properties owned by third parties. Redeemable Preferred Stock —Beginning on the date of original issuance of any given shares of Series A Preferred Stock (Note 11), the holder of such shares has the right to require the Company to redeem such shares at a redemption price of 100% of the Series A Preferred Stock Stated Value (as defined in Note 11), plus accrued and unpaid dividends, subject to the payment of a redemption fee until the fifth anniversary of such issuance. From and after the fifth anniversary of the date of the original issuance, the holder will have the right to require the Company to redeem such shares at a redemption price of 100% of the Series A Preferred Stock Stated Value, plus accrued and unpaid dividends, without a redemption fee, and the Company will have the right (but not the obligation) to redeem such shares at 100% of the Series A Preferred Stock Stated Value, plus accrued and unpaid dividends. The applicable redemption price payable upon redemption of any Series A Preferred Stock will be in cash or, on or after the first anniversary of the issuance of such shares of Series A Preferred Stock to be redeemed, in the Company's sole discretion, in cash or in equal value through the issuance of shares of Common Stock, based on the volume weighted average price of our Common Stock for the 20 trading days prior to the redemption. Since a holder of Series A Preferred Stock has the right to request redemption of such shares and redemptions prior to the first anniversary are to be paid in cash, we have recorded the activity related to our Series A Preferred Stock in temporary equity. We recorded the activity related to our Series A Preferred Warrants (Note 11) in permanent equity. On the first anniversary of the date of original issuance of a particular share of Series A Preferred Stock, we intend to reclassify such share of Series A Preferred Stock from temporary equity to permanent equity because the feature giving rise to temporary equity classification, the requirement to satisfy redemption requests in cash, lapses on the first anniversary date. Proceeds and expenses from the sale of the Series A Preferred Units are allocated to the Series A Preferred Stock and Series A Preferred Warrants using their relative fair values on the date of issuance. Our Series L Preferred Stock (as defined in Note 11) is redeemable at the option of the holder or CIM Commercial. From and after the fifth anniversary of the date of original issuance of the Series L Preferred Stock, each holder will have the right to require the Company to redeem, and the Company will also have the option to redeem (subject to certain conditions), such shares of Series L Preferred Stock at a redemption price equal to the Series L Preferred Stock Stated Value (as defined in Note 11), plus, provided certain conditions are met, all accrued and unpaid distributions. Notwithstanding the foregoing, a holder of shares of our Series L Preferred Stock may require us to redeem such shares at any time prior to the fifth anniversary of the date of original issuance of the Series L Preferred Stock if (1) we do not declare and pay in full the distributions on the Series L Preferred Stock for any annual period prior to such fifth anniversary (provided that the first distribution on the Series L Preferred Stock is expected to be payable in January 2019) or (2) we do not declare and pay all accrued and unpaid distributions on the Series L Preferred Stock for all past dividend periods prior to the applicable holder redemption date. The applicable redemption price payable upon redemption of any Series L Preferred Stock will be made, in the Company's sole discretion, in the form of (A) cash in Israeli new shekels ("ILS") at the then-current currency exchange rate determined in accordance with the Articles Supplementary defining the terms of the Series L Preferred Stock, (B) in equal value through the issuance of shares of Common Stock, with the value of such Common Stock to be deemed the lower of (i) our NAV per share of our Common Stock as most recently published by the Company as of the effective date of redemption and (ii) the volume-weighted average price of our Common Stock, determined in accordance with the Articles Supplementary defining the terms of the Series L Preferred Stock, or (C) in a combination of cash in ILS and our Common Stock, based on the conversion mechanisms set forth in (A) and (B), respectively. We recorded the activity related to our Series L Preferred Stock in permanent equity. Purchase Accounting for Acquisition of Investments in Real Estate —We apply the acquisition method to all acquired real estate assets. The purchase consideration of the real estate, which for real estate acquired on or after October 1, 2017 includes the transaction costs incurred in connection with such acquisitions, is recorded at fair value to the acquired tangible assets, consisting primarily of land, land improvements, building and improvements, tenant improvements, and furniture, fixtures, and equipment, and identified intangible assets and liabilities, consisting of the value of acquired above-market and below-market leases, in-place leases and ground leases, if any, based in each case on their respective fair values. Loan premiums, in the case of above-market rate loans, or loan discounts, in the case of below-market rate loans, are recorded based on the fair value of any loans assumed in connection with acquiring the real estate. The fair value of the tangible assets of an acquired property is determined by valuing the property as if it were vacant, and the "as-if-vacant" value is then allocated to land (or acquired ground lease if the land is subject to a ground lease), land improvements, building and improvements, and tenant improvements based on management's determination of the relative fair values of these assets. Management determines the as-if-vacant fair value of a property using methods similar to those used by independent appraisers. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses, and estimates of lost rental revenue during the expected lease-up periods based on current market demand. Management also estimates costs to execute similar leases, including leasing commissions, legal, and other related costs. In allocating the purchase consideration of the identified intangible assets and liabilities of an acquired property, above-market, below-market, and in-place lease values are recorded based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management's estimate of fair market lease rates for the corresponding in-place leases measured over a period equal to the remaining non-cancelable term of the lease, and for below-market leases, over a period equal to the initial term plus any below-market fixed-rate renewal periods. Acquired above-market and below-market leases are amortized and recorded to rental and other property income over the initial terms of the respective leases. The aggregate value of other acquired intangible assets, consisting of in-place leases and tenant relationships, is measured by the estimated cost of operations during a theoretical lease-up period to replace in-place leases, including lost revenues and any unreimbursed operating expenses, plus an estimate of deferred leasing commissions for in-place leases. The value of in-place leases is amortized to expense over the remaining non-cancelable periods of the respective leases. If a lease is terminated prior to its stated expiration, all unamortized amounts relating to that lease are written-off. A tax abatement intangible asset was recorded for a property acquired in 2011 and sold in 2017, based on an approval for a property tax abatement, due to the location of the property. The tax abatement intangible asset was amortized over eight years and was written off in connection with the disposition. Tax abatement was $0 and $1,400,000 at December 31, 2017 and 2016 , respectively. Revenue Recognition —All leases are classified as operating leases and minimum rents are recognized on a straight-line basis over the terms of the leases when collectability is reasonably assured and the tenant has taken possession or controls the physical use of the leased asset. The excess of rents recognized over amounts contractually due pursuant to the underlying leases is recorded as deferred rent. If the lease provides for tenant improvements, we determine whether the tenant improvements, for accounting purposes, are owned by the tenant or us. When we are the owner of the tenant improvements, the tenant is not considered to have taken physical possession or have control of the physical use of the leased asset until the tenant improvements are substantially completed. When the tenant is considered the owner of the improvements, any tenant improvement allowance that is funded is treated as incentive. Lease incentives paid to tenants are included in other assets and amortized as a reduction to rental revenue on a straight-line basis over the term of the related lease. Lease incentives of $12,648,000 and $13,084,000 are presented net of accumulated amortization of $5,029,000 and $4,303,000 at December 31, 2017 and 2016 , respectively. Reimbursements from tenants, consisting of amounts due from tenants for common area maintenance, real estate taxes, insurance, and other recoverable costs, are recognized as revenue in the period the expenses are incurred. Tenant reimbursements are recognized and presented on a gross basis when we are the primary obligor with respect to incurring expenses and with respect to having the credit risk. In addition to minimum rents, certain leases provide for additional rents based upon varying percentages of tenants' sales in excess of annual minimums. Percentage rent is recognized once lessees' specified sales targets have been met. Included in rental and other property income for the years ended December 31, 2017 , 2016 and 2015 , is $304,000 , $338,000 and $329,000 , respectively, of percentage rent. We derive parking revenues from leases with third-party operators. Our parking leases provide for additional rents based upon varying percentages of tenants' sales in excess of annual minimums. Parking percentage rent is recognized once lessees' specific sales targets have been met. Included in rental and other property income for the years ended December 31, 2017 , 2016 and 2015 , is $2,614,000 , $3,156,000 and $2,290,000 , respectively, of parking percentage rent. Hotel room sales are recognized upon daily occupancy. Other hotel revenues are recognized as earned upon facility use or food and beverage consumption. Interest income included in interest and other income or discontinued operations is comprised of interest earned on loans and our short-term investments and the accretion of net loan origination fees and discounts. Interest income on loans is accrued as earned with the accrual of interest suspended when the related loan becomes a Non-Accrual Loan. Premiums and Discounts on Debt — Premiums and discounts on debt are accreted or amortized on the effective interest method or on a straight-line basis over the respective term of the loan to interest expense, which approximates the effective interest method. Stock-Based Compensation Plans —We had options outstanding and have issued and continue to issue restricted shares under stock-based compensation plans described more fully in Note 9. We use fair value recognition provisions to account for all awards granted, modified or settled. Earnings per Share ("EPS") —Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of shares of Common Stock outstanding for the period. Net income available to common stockholders includes a deduction for dividends due to preferred stockholders. Diluted EPS is computed by dividing net income available to common stockholders by the weighted average number of shares of Common Stock outstanding adjusted for the dilutive effect, if any, of securities such as stock-based compensation awards, warrants, including the Series A Preferred Warrants (Note 12) and preferred stock, including the Series A Preferred Stock (Note 11) and Series L Preferred Stock (Note 11), whose redemption is payable in shares of Common Stock or cash, at the discretion of the Company. The dilutive effect of stock-based compensation awards and warrants, including the Series A Preferred Warrants, is reflected in the weighted average diluted shares calculation by application of the treasury stock method. The dilutive effect of preferred stock, including the Series A Preferred Stock and Series L Preferred Stock, whose redemption is payable in shares of Common Stock or cash, at the discretion of the Company, is reflected in the weighted average diluted shares calculation by application of the if-converted method. Distributions —Distributions are recorded on the ex-dividend date. Assets Held for Sale and Discontinued Operations —In the ordinary course of business, we may periodically enter into agreements relating to dispositions of assets. Some of these agreements are non-binding because either they do not obligate either party to pursue any transactions until the execution of a definitive agreement or they provide the potential buyer with the ability to terminate without penalty or forfeiture of any material deposit, subject to certain specified contingencies, such as completion of due diligence at the discretion of such buyer. We do not classify assets that are subject to such non-binding agreements as held for sale. We classify assets as held for sale, if material, when they meet the necessary criteria, which include: a) management commits to and actively embarks upon a plan to sell the assets, b) the assets to be sold are available for immediate sale in their present condition, c) the sale is expected to be completed within one year under terms usual and customary for such sales and d) actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. We generally believe that we meet these criteria when the plan for sale has been approved by our Board of Directors, there are no known significant contingencies related to the sale and management believes it is probable that the sale will be completed within one year. Assets held for sale are recorded at the lower of cost or estimated fair value less cost to sell. In addition, if we were to determine that the asset disposal associated with assets held for sale or disposed of represents a strategic shift, the revenues, expenses and net gain (loss) on dispositions would be recorded in discontinued operations for all periods presented through the date of the applicable disposition. We have assessed the sale of our multifamily properties (Note 3) in accordance with ASC 205-20, Discontinued Operations . In our assessment, we considered, among other factors, the materiality of the revenue, net operating income, and total assets of our multifamily segment for the years ended December 31, 2017, 2016, and 2015. Based on our qualitative and quantitative assessment, we concluded the disposals do not represent a strategic shift that will have a major effect on our operations and financial results and they should not be classified as discontinued operations on our consolidated financial statements. Derivative Financial Instruments —As part of risk management and operational strategies, from time to time, we may enter into derivative contracts with various counterparties. All derivatives are recognized on the balance sheet at their estimated fair value. On the date that we enter into a derivative contract, we designate the derivative as a fair value hedge, a cash flow hedge, a foreign currency fair value or cash flow hedge, a hedge of a net investment in a foreign operation, or a trading or non-hedging instrument. Changes in the estimated fair value of a derivative that is highly effective and that is designated and qualifies as a cash flow hedge, to the extent that the hedge is effective, are initially recorded in other comprehensive income ("OCI"), and are subsequently reclassified into earnings as a component of interest expense when the variability of cash flows of the hedged transaction affects earnings (e.g., when periodic settlements of a variable-rate asset or liability are recorded in earnings). Any hedge ineffectiveness (which represents the amount by which the changes in the estimated fair value of the derivative differ from the variability in the cash flows of the forecasted transaction) is recognized in current-period earnings as a component of interest expense. When an interest rate swap designated as a cash flow hedge no longer qualifies for hedge accounting, we recognize changes in estimated fair value of the hedge previously deferred to accumulated other comprehensive income ("AOCI"), along with any changes in estimated fair value occurring thereafter, through earnings. We classify cash flows from interest rate swap agreements as net cash provided from operating activities on the consolidated statements of cash flows as our accounting policy is to present the cash flows from the hedging instruments in the same category in the consolidated statements of cash flows as the category for the cash flows from the hedged items. See Note 13 for disclosures about our derivative financial instruments and hedging activities. Income Taxes —We have elected to be taxed as a REIT under the provisions of the Code. To the extent we qualify for taxation as a REIT, we generally will not be subject to a federal corporate income tax on our taxable income that is distributed to our stockholders. We may, however, be subject to certain federal excise taxes and state and local taxes on our income and property. If we fail to qualify as a REIT in any taxable year, we will be subject to federal income taxes at regular corporate rates (including any applicable alternative minimum tax) and will not be able to qualify as a REIT for four subsequent taxable years. In order to remain qualified as a REIT under the Code, we must satisfy various requirements in each taxable year, including, among others, limitations on share ownership, asset diversification, sources of income, and the distribution of at least 90% of our taxable income within the specified time in accordance with the Code. We have wholly-owned taxable REIT subsidiaries ("TRS's") which are subject to federal income taxes. The income generated from the taxable REIT subsidiaries is taxed at normal corporate rates. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. We have established a policy on classification of penalties and interest related to audits of our federal and state income tax returns. If incurred, our policy for recording interest and penalties associated with audits will be to record such items as a component of general and administrative expense. Penalties, if incurred, will be recorded in general and administrative expense and interest paid or received will be recorded in interest expense or interest income, respectively, in our consolidated statements of operations. ASC 740, Income Taxes , provides guidance for how uncertain tax positions should be recognized, measured, presented, and disclosed in the financial statements. ASC 740 requires the evaluation of tax positions taken or expected to be taken in the course of preparing our tax returns to determine whether the tax positions are "more likely than not" of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense in the current period. We have reviewed all open tax years and concluded that the application of ASC 740 resulted in no material effect to our consolidated financial position or results of operations. Consolidation Considerations for Our Investments in Real Estate —ASC 810-10, Consolidation , addresses how a business enterprise should evaluate whether it has a controlling interest in an entity through means other than voting rights that would require the entity to be consolidated. We analyze our investments in real estate in accordance with this accounting standard to determine whether they are variable interest entities, and if so, whether we are the primary beneficiary. Our judgment with respect to our level of influence or control over an entity and whether we are the primary beneficiary of a variable interest entity involves consideration of various factors, including the form of our ownership interest, our voting interest, the size of our investment (including loans), and our ability to participate in major policy-making decisions. Our ability to correctly assess our influence or control over an entity affects the presentation of these investments in real estate on our consolidated financial statements. Use of Estimates —The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Reclassifications —Certain prior period amounts have been reclassified to conform with the current period presentation. These reclassifications had no effect on previously reported net income or cash flows. Concentration of Credit Risk —Financial instruments that subject us to credit risk consist primarily of cash and cash equivalents and interest rate swap agreements. We have our cash and cash equivalents on deposit with what we believe to be high-quality financial institutions. Accounts at each institution are insured by the Federal Deposit Insurance Corporation up to $250,000. We believe that the counterparties in our interest rate swap agreements are high-quality financial institutions. The credit quality of the counterparties is monitored on an ongoing basis. Management routinely assesses the financial strength of its tenants and, as a consequence, believes that its accounts receivable credit risk exposure is limited. Our properties are located throughout the United States. The majority of our revenues are earned from properties located in the Washington, D.C. area and California. We are subject to risks incidental to the ownership and operation of commercial |