Organization and Basis of Presentation (Policies)	6 Months Ended
Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Recent Developments	Recent Developments On February 12, 2019, the Company held a special meeting of stockholders (the “2019 Special Meeting”), at which its stockholders approved and adopted the Comstock Holding Companies, Inc. 2019 Omnibus Incentive Plan (the “2019 Plan”). The Company’s board of directors previously approved the 2019 Plan on December 12, 2018, subject to stockholder approval. At the 2019 Special Meeting, the Company’s stockholders approved an amendment to the Company’s Amended and Restated Certificate of Incorporation to increase the number of authorized shares of Class A common stock from 11,038,071 to 59,779,750 and a corresponding increase to the number of authorized shares of all classes of capital stock from 31,428,571 to 80,000,000 (the “Amendment”). The Amendment became effective upon filing with the Secretary of State of the State of Delaware on February 15, 2019 (the “Certificate of Amendment”). Also on February 15, 2019 the Company filed a Certificate of Amendment of the Certificate of Designation of Series C Non-Convertible Preferred Stock of Comstock Holding Companies, Inc. (the “Series C Certificate of Amendment”) with the Secretary of the State of Delaware. The Series C Certificate of Amendment amended the Certificate of Designation to increase the number of shares of Series C Preferred Stock from 3,000,000 to 4,500,000. Refer to the Company’s 10K Annual Report filing on March 29, 2019, which is incorporated herein. On April 30, 2019, The Company entered into a Master Transfer Agreement (the “MTA”) with Comstock Development Services, LC (“CDS”), an entity wholly owned by Christopher Clemente, the Chief Executive Officer of CHCI, and FR54, LC (“FR54”), an entity also controlled by Mr. Clemente, that sets forth certain transactions to complete CHCI’s previously announced exit from the homebuilding and land development business in favor of a migration to an asset management model. Pursuant to the MTA, the Company issued 1,220,000 shares of series C preferred shares and 3,100,000 shares of Class A common stock to CDS as consideration for the management of and its Class B membership interest in Comstock Investors X, L.C. (“Comstock X”), a Variable Interest Entity (“VIE”) that owns the Company’s residual homebuilding operations. Additionally, pursuant to the MTA, FR54 transferred 579,158 shares of Series C Stock to the Company, which were immediately cancelled, in exchange for the issuance of 723,947 newly issued shares of the Company’s Class A common stock. As a result of the MTA, the Company determined that Comstock X is considered held for sale effective April 30, 2019 and therefore Comstock X activities have been reclassified to discontinued operations in the accompanying consolidated financial statements. On July 23, 2019, the Comstock X operating agreement was amended to clarify certain definitions resulting in Comstock X no longer being considered a VIE of the Company and therefore the deconsolidation of Comstock X as of that date. Refer to Note 14 – Consolidation of Variable Interest Entities and Note 20 – Subsequent Events for further discussion regarding the future accounting related to this transaction. On April 30, 2019, CDS Asset Management, L.C. (“CAM”), an entity wholly owned by the Company, also entered into an amended and restated master asset management agreement (the “2019 AMA”) with CDS, which amends and restates in its entirety the asset management agreement between the parties dated March 30, 2018 with an effective date as of January 1, 2018. Pursuant to the 2019 AMA, CDS will engage CAM to manage and administer CDS’ commercial real estate portfolio (“CRE Portfolio”) and the day to-day operations of CDS and each property-owning subsidiary of CDS (collectively, the “CDS Entities”). Pursuant to the terms of the 2019 AMA, CAM will provide investment advisory, development and asset management services necessary to build out, stabilize and manage the CRE Portfolio. The CRE Portfolio consists primarily of two of the larger transit-oriented, mixed-use developments located at metro stops on Washington D.C. Metro’s Silver Line (Reston Station and Loudoun Station), which are owned by entities of varying ownership interests but all of which are ultimately controlled by Mr. Clemente. Pursuant to the modified fee structure set forth in the 2019 AMA, CDS will pay CAM an annual fee equal to the greater of either (i) an aggregate amount equal to the sum of (a) an asset management fee equal to 2.5% of the CRE Portfolio revenues; (b) a construction management fee equal to 4% of all costs associated with CRE Portfolio projects in development; (c) a property management fee equal to 1% of the CRE Portfolio revenues, (d) an acquisition fee equal to up to 0.5% of the purchase price of an acquired asset; and (f) a disposition fee equal to 0.5% of the sales price of an asset on disposition (collectively the “Market Rate Fee”); or (ii) an aggregate amount equal to the sum of (x) the employment expenses of personnel dedicated to providing services to the CRE Portfolio pursuant to the 2019 AMA, (y) the costs and expenses of CHCI related to maintaining the listing of its shares on a securities exchange and complying with regulatory and reporting obligations of a public company, and (z) a fixed annual payment of $1,000,000 (collectively the “Cost Plus Fee”). In addition to the annual payment of either the Market Rate Fee or the Cost Plus Fee; CAM is also entitled on an annual basis to the following supplemental AMA fees; (i) an incentive fee equal to 10% of the free cash flow of each of the real estate assets comprising the CRE Portfolio after calculating a compounding preferred return of 8% on CDS invested capital (the “Incentive Fee”); (ii) an investment origination fee equal to 1% of raised capital, (iii) a leasing fee equal to $1.00/sf for new leases and $.50/sf for renewals; and (iv) mutually agreeable loan origination fees related to the CRE Portfolio. The 2019 AMA will terminate on December 31, 2027 (“Initial Term”), an extension from the original termination date of December 31, 2022, and will automatically renew for successive additional one-year terms (each an “Extension Term”) unless CDS delivers written notice of non-renewal of the 2019 AMA at least 180 days prior to the termination date of the Initial Term or any Extension Term. Twenty-four months after the effective date of the 2019 AMA, CDS is entitled to terminate the 2019 AMA without cause upon 180 days advance written notice to CAM. In the event of such a termination and in addition to the payment of any accrued annual fees due and payable as of the termination date under the 2019 AMA, CDS is required to pay a termination fee equal to (i) the Market Rate Fee or the Cost Plus Fee paid to CAM for the calendar year immediately preceding the termination , and (ii) a one-time payment of the Incentive Fee as if the CRE Portfolio were liquidated for fair market value as of the termination date; or the continued payment of the Incentive Fee as if a termination had not occurred. On April 30, 2019, CAM also entered into a Business Management Agreement (the “BMA”) with Comstock Investors X, L.C. (“Investors X”), an entity owned and controlled by CDS subsequent to the ownership transfer transactions set forth in the MTA, whereby CAM will provide Investors X with asset and professional services related to the wind down of the Company’s divested homebuilding operations and the continuation of services related to the Company’s divested land development activities. The aggregate fee payable to CAM from Investors X under the Management Agreement is $937,500, payable in fifteen quarterly installments of $62,500 each.
Use of Estimates	Use of Estimates Our consolidated financial statements have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts for the reporting periods. We base these estimates and judgments on historical experience and on various other factors that we believe to be reasonable under the circumstances. We evaluate these estimates and judgments on an ongoing basis. Actual results may differ from those estimates under different assumptions or conditions. Material estimates are utilized in the valuation of real estate inventories, valuation of deferred tax assets, analysis of goodwill impairment, valuation of equity-based compensation, valuation of preferred stock issuances, capitalization of costs, consolidation of variable interest entities, fair value of debt instruments and warranty reserves.
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updated (“ASU”) 2016-02, “Leases” (“ASU 2016-02”). The core principle of the standard is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize in its statement of financial position a liability to make lease payments (the lease liability) and a right-of-use (“ROU”) asset representing its right to use the underlying asset for the lease term. The FASB subsequently issued ASU 2018-10 and ASU 2018-11 in July 2018, which provide clarifications and improvements to ASU 2016-02. ASU 2018-11 also provides the optional transition method which will allow companies to apply the new lease standard at the adoption date instead of at the earliest comparative period presented. ASU 2016-02 is effective for public companies for annual reporting periods beginning after December 15, 2018 and interim periods within those fiscal years. The Company adopted this standard using the modified retrospective method effective January 1, 2019. As permitted by the guidance, the Company elected to retain the original lease classification and historical accounting for initial direct costs for leases existing prior to the adoption date and did not reassess contracts entered into prior to the adoption date for the existence of a lease. The Company also did not recognize ROU assets and lease liabilities for short-term leases, which are leases in existence as of the adoption date with an original term of twelve months or less. As a result of the adoption of the standard, the Company recognized ROU assets and liabilities of $170 thousand as of the adoption date on its condensed consolidated balance sheet. The assets and liabilities recognized upon application of the transition provisions were primarily associated with our existing office leases. Recently Issued Accounting Standards In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”), which removes, adds and modifies certain disclosure requirements for fair value measurements in Topic 820. ASU 2018-13 removes the following disclosure requirements: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and (ii) the entity’s valuation processes for Level 3 fair value measurements. ASU 2018-13 adds the following disclosure requirements: (i) provide information about the measurement uncertainty of Level 3 fair value measurements as of the reporting date rather than a point in the future, (ii) disclose changes in unrealized gains and losses related to Level 3 measurements for the period included in other comprehensive income, and (iii) disclose for Level 3 measurements the range and weighted average of the significant unobservable inputs and the way it is calculated. ASU 2018-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. We do not expect the adoption of this pronouncement to have a material impact on our consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which is designed to provide financial statement users with more information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. When determining such expected credit losses, the guidance requires companies to apply a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This guidance is effective on a modified retrospective basis for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is currently evaluating the impact this guidance will have on its financial statements and related disclosures. We assessed other accounting pronouncements issued or effective during the six months ended June 30, 2019 and deemed they were either not applicable to us or are not anticipated to have a material effect on our consolidated financial statements. Other standards previously issued and adopted by the Company have been disclosed in previous filings.

Organization and Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

On February 12, 2019, the Company held a special meeting of stockholders (the “2019 Special Meeting”), at which its stockholders approved and adopted the Comstock Holding Companies, Inc. 2019 Omnibus Incentive Plan (the “2019 Plan”). The Company’s board of directors previously approved the 2019 Plan on December 12, 2018, subject to stockholder approval. At the 2019 Special Meeting, the Company’s stockholders approved an amendment to the Company’s Amended and Restated Certificate of Incorporation to increase the number of authorized shares of Class A common stock from 11,038,071 to 59,779,750 and a corresponding increase to the number of authorized shares of all classes of capital stock from 31,428,571 to 80,000,000 (the “Amendment”). The Amendment became effective upon filing with the Secretary of State of the State of Delaware on February 15, 2019 (the “Certificate of Amendment”). Also on February 15, 2019 the Company filed a Certificate of Amendment of the Certificate of Designation of Series C Non-Convertible Preferred Stock of Comstock Holding Companies, Inc. (the “Series C Certificate of Amendment”) with the Secretary of the State of Delaware. The Series C Certificate of Amendment amended the Certificate of Designation to increase the number of shares of Series C Preferred Stock from 3,000,000 to 4,500,000. Refer to the Company’s 10K Annual Report filing on March 29, 2019, which is incorporated herein.

On April 30, 2019, The Company entered into a Master Transfer Agreement (the “MTA”) with Comstock Development Services, LC (“CDS”), an entity wholly owned by Christopher Clemente, the Chief Executive Officer of CHCI, and FR54, LC (“FR54”), an entity also controlled by Mr. Clemente, that sets forth certain transactions to complete CHCI’s previously announced exit from the homebuilding and land development business in favor of a migration to an asset management model. Pursuant to the MTA, the Company issued 1,220,000 shares of series C preferred shares and 3,100,000 shares of Class A common stock to CDS as consideration for the management of and its Class B membership interest in Comstock Investors X, L.C. (“Comstock X”), a Variable Interest Entity (“VIE”) that owns the Company’s residual homebuilding operations. Additionally, pursuant to the MTA, FR54 transferred 579,158 shares of Series C Stock to the Company, which were immediately cancelled, in exchange for the issuance of 723,947 newly issued shares of the Company’s Class A common stock. As a result of the MTA, the Company determined that Comstock X is considered held for sale effective April 30, 2019 and therefore Comstock X activities have been reclassified to discontinued operations in the accompanying consolidated financial statements. On July 23, 2019, the Comstock X operating agreement was amended to clarify certain definitions resulting in Comstock X no longer being considered a VIE of the Company and therefore the deconsolidation of Comstock X as of that date. Refer to Note 14 – Consolidation of Variable Interest Entities and Note 20 – Subsequent Events for further discussion regarding the future accounting related to this transaction.

On April 30, 2019, CDS Asset Management, L.C. (“CAM”), an entity wholly owned by the Company, also entered into an amended and restated master asset management agreement (the “2019 AMA”) with CDS, which amends and restates in its entirety the asset management agreement between the parties dated March 30, 2018 with an effective date as of January 1, 2018. Pursuant to the 2019 AMA, CDS will engage CAM to manage and administer CDS’ commercial real estate portfolio (“CRE Portfolio”) and the day to-day operations of CDS and each property-owning subsidiary of CDS (collectively, the “CDS Entities”).

Pursuant to the terms of the 2019 AMA, CAM will provide investment advisory, development and asset management services necessary to build out, stabilize and manage the CRE Portfolio. The CRE Portfolio consists primarily of two of the larger transit-oriented, mixed-use developments located at metro stops on Washington D.C. Metro’s Silver Line (Reston Station and Loudoun Station), which are owned by entities of varying ownership interests but all of which are ultimately controlled by Mr. Clemente. Pursuant to the modified fee structure set forth in the 2019 AMA, CDS will pay CAM an annual fee equal to the greater of either (i) an aggregate amount equal to the sum of (a) an asset management fee equal to 2.5% of the CRE Portfolio revenues; (b) a construction management fee equal to 4% of all costs associated with CRE Portfolio projects in development; (c) a property management fee equal to 1% of the CRE Portfolio revenues, (d) an acquisition fee equal to up to 0.5% of the purchase price of an acquired asset; and (f) a disposition fee equal to 0.5% of the sales price of an asset on disposition (collectively the “Market Rate Fee”); or (ii) an aggregate amount equal to the sum of (x) the employment expenses of personnel dedicated to providing services to the CRE Portfolio pursuant to the 2019 AMA, (y) the costs and expenses of CHCI related to maintaining the listing of its shares on a securities exchange and complying with regulatory and reporting obligations of a public company, and (z) a fixed annual payment of $1,000,000 (collectively the “Cost Plus Fee”).

In addition to the annual payment of either the Market Rate Fee or the Cost Plus Fee; CAM is also entitled on an annual basis to the following supplemental AMA fees; (i) an incentive fee equal to 10% of the free cash flow of each of the real estate assets comprising the CRE Portfolio after calculating a compounding preferred return of 8% on CDS invested capital (the “Incentive Fee”); (ii) an investment origination fee equal to 1% of raised capital, (iii) a leasing fee equal to $1.00/sf for new leases and $.50/sf for renewals; and (iv) mutually agreeable loan origination fees related to the CRE Portfolio.

The 2019 AMA will terminate on December 31, 2027 (“Initial Term”), an extension from the original termination date of December 31, 2022, and will automatically renew for successive additional one-year terms (each an “Extension Term”) unless CDS delivers written notice of non-renewal of the 2019 AMA at least 180 days prior to the termination date of the Initial Term or any Extension Term. Twenty-four months after the effective date of the 2019 AMA, CDS is entitled to terminate the 2019 AMA without cause upon 180 days advance written notice to CAM. In the event of such a termination and in addition to the payment of any accrued annual fees due and payable as of the termination date under the 2019 AMA, CDS is required to pay a termination fee equal to (i) the Market Rate Fee or the Cost Plus Fee paid to CAM for the calendar year immediately preceding the termination , and (ii) a one-time payment of the Incentive Fee as if the CRE Portfolio were liquidated for fair market value as of the termination date; or the continued payment of the Incentive Fee as if a termination had not occurred.

On April 30, 2019, CAM also entered into a Business Management Agreement (the “BMA”) with Comstock Investors X, L.C. (“Investors X”), an entity owned and controlled by CDS subsequent to the ownership transfer transactions set forth in the MTA, whereby CAM will provide Investors X with asset and professional services related to the wind down of the Company’s divested homebuilding operations and the continuation of services related to the Company’s divested land development activities. The aggregate fee payable to CAM from Investors X under the Management Agreement is $937,500, payable in fifteen quarterly installments of $62,500 each.

Use of Estimates

Our consolidated financial statements have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts for the reporting periods. We base these estimates and judgments on historical experience and on various other factors that we believe to be reasonable under the circumstances. We evaluate these estimates and judgments on an ongoing basis. Actual results may differ from those estimates under different assumptions or conditions. Material estimates are utilized in the valuation of real estate inventories, valuation of deferred tax assets, analysis of goodwill impairment, valuation of equity-based compensation, valuation of preferred stock issuances, capitalization of costs, consolidation of variable interest entities, fair value of debt instruments and warranty reserves.

Recently Adopted and Issued Accounting Standards

Recently Adopted Accounting Standards

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updated (“ASU”) 2016-02, “Leases” (“ASU 2016-02”). The core principle of the standard is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize in its statement of financial position a liability to make lease payments (the lease liability) and a right-of-use (“ROU”) asset representing its right to use the underlying asset for the lease term. The FASB subsequently issued ASU 2018-10 and ASU 2018-11 in July 2018, which provide clarifications and improvements to ASU 2016-02. ASU 2018-11 also provides the optional transition method which will allow companies to apply the new lease standard at the adoption date instead of at the earliest comparative period presented. ASU 2016-02 is effective for public companies for annual reporting periods beginning after December 15, 2018 and interim periods within those fiscal years. The Company adopted this standard using the modified retrospective method effective January 1, 2019. As permitted by the guidance, the Company elected to retain the original lease classification and historical accounting for initial direct costs for leases existing prior to the adoption date and did not reassess contracts entered into prior to the adoption date for the existence of a lease. The Company also did not recognize ROU assets and lease liabilities for short-term leases, which are leases in existence as of the adoption date with an original term of twelve months or less. As a result of the adoption of the standard, the Company recognized ROU assets and liabilities of $170 thousand as of the adoption date on its condensed consolidated balance sheet. The assets and liabilities recognized upon application of the transition provisions were primarily associated with our existing office leases.

Recently Issued Accounting Standards

In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”), which removes, adds and modifies certain disclosure requirements for fair value measurements in Topic 820. ASU 2018-13 removes the following disclosure requirements: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and (ii) the entity’s valuation processes for Level 3 fair value measurements. ASU 2018-13 adds the following disclosure requirements: (i) provide information about the measurement uncertainty of Level 3 fair value measurements as of the reporting date rather than a point in the future, (ii) disclose changes in unrealized gains and losses related to Level 3 measurements for the period included in other comprehensive income, and (iii) disclose for Level 3 measurements the range and weighted average of the significant unobservable inputs and the way it is calculated. ASU 2018-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. We do not expect the adoption of this pronouncement to have a material impact on our consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which is designed to provide financial statement users with more information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. When determining such expected credit losses, the guidance requires companies to apply a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This guidance is effective on a modified retrospective basis for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is currently evaluating the impact this guidance will have on its financial statements and related disclosures.

We assessed other accounting pronouncements issued or effective during the six months ended June 30, 2019 and deemed they were either not applicable to us or are not anticipated to have a material effect on our consolidated financial statements. Other standards previously issued and adopted by the Company have been disclosed in previous filings.