Related Party Transactions	6 Months Ended
Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	18. RELATED PARTY TRANSACTIONS The Company leases its corporate headquarters from an affiliated entity that is wholly-owned by our Chief Executive Officer. Future minimum lease payments under this lease, which expires in 2018, is $0.1 million. For the three months ended June 30, 2018 and 2017, total payments made under this lease agreement were $53 and $52, respectively. For the six months ended June 30, 2018 and 2017, total payments were $107 and $104, respectively. On February 23, 2009, Comstock Homes of Washington, L.C., a wholly-owned subsidiary of the Company, entered into a Services Agreement with Comstock Asset Management, L.C., an entity wholly-owned by our Chief Executive Officer, to provide services related to real estate development and improvements, including legal, accounting, marketing, information technology and other additional support services. For the three months ended June 30, 2018 and 2017, the Company billed Comstock Asset Management, L.C. $12 and $285, respectively, for services andout-of-pocket expenses. For the six months ended June 30, 2018 and 2017, Comstock Asset Management, L.C. was billed $12 and $488, respectively. Revenues from this arrangement are included within ‘Revenue – real estate services’ in the accompanying consolidated statements of operations. As of June 30, 2018, and December 31, 2017, the Company was owed $12 and $145, respectively, under this contract, which is included in ‘Trade receivables’ in the accompanying consolidated balance sheets. On October 17, 2014, Comstock Growth Fund (“CGF”), an administrative entity managed by the Company, entered into a subscription agreement with Comstock Development Services, LC (“CDS”), an entity wholly-owned by our Chief Executive Officer, pursuant to which CDS purchased membership interests in CGF for a principal amount of $10 million. Other purchasers who purchased interests in the private placement included members of the Company’s management and board of directors and other third-party, accredited investors for an additional principal amount of $6.2 million (the “CGF Private Placement”). Simultaneously, on October 17, 2014, the Company entered into an unsecured promissory note with CGF whereby CGF made a loan to the Company in the initial principal amount of $10 million and a maximum capacity of up to $20 million. On December 18, 2014, the loan agreement was amended and restated to provide for a maximum capacity of $25 million. The Company borrowed an additional principal loan amount of $6.2 million under the amended and restated CGF promissory note bringing the total aggregate principal amount borrowed to $16.2 million. The CGF loan initially had a three year term carrying a floating interest rate of LIBOR plus 9.75% with a 10% floor. The loan requires an annual principal repayment in the amount of 10% of the average outstanding balance and a monthly interest payment that will be made in arrears. See Note 12 – Debt for further discussion of transactions entered into with CGF. On December 18, 2014, CGF entered into amended and restated subscription agreements with CDS, members of the Company’s management and board of directors and the other third party accredited investors who participated in the CGF Private Placement (the “Amended CGF Private Placement”). Under the Amended CGF Private Placement, in addition to the warrants described above, the Company entered into a commitment to grant 226,857 shares of our Class A common stock to the purchasers in the Amended CGF Private Placement. On May 12, 2015, the Company issued 226,857 un-registered shares of its Class A common stock to the purchasers in the Amended CGF Private Placement. The Amended CGF Private Placement was closed for additional investments on May 15, 2015. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Membership Interest Exchange and Subscription Agreement (the “Membership Exchange Agreement”), together with a revised promissory note agreement, in which a note (“CGF Note”) with an outstanding principal and accrued interest balance of $7.7 million was exchanged for 1,482,300 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Development Services, LLC (“CDS”), a Company wholly owned by our Chief Executive Officer. The Company exchanged the preferred equity for 91.5% of CDS membership interest in the Comstock Growth Fund promissory note. Concurrently, the face amount of the CGF Note was reduced to $5.7 million as of the Effective Date. On December 29, 2015, the Company and Stonehenge Funding, L.C. (“Stonehenge”), an entity wholly owned by our Chief Executive Officer, entered into a Note Exchange and Subscription Agreement pursuant to which the note in the original principal amount of $4.5 million issued to the Company by Stonehenge was cancelled in its entirety and exchanged for 772,210 shares of the Company’s Series B Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share (the “Series B Preferred Stock”). The number of shares of Series B Preferred Stock received by Stonehenge in exchange for the note represented the principal amount outstanding plus accrued interest under the note as of December 29, 2015, which was $3.9 million. The holders of Series B Preferred Stock earn dividends at a rate of 8.75% per annum accruing from the effective date of the Note Exchange and Subscription Agreement. On December 29, 2015, Comstock Growth Fund II, L.C. (“CGF II”), an administrative entity managed by the Company was created for the purpose of extending loans to the Company. CGF II entered into a subscription agreement with CDS pursuant to which CDS purchased membership interests in CGF II for an initial aggregate principal amount of $5.0 million (the “CGF II Private Placement”). Also on December 29, 2015, the Company entered into a revolving line of credit promissory note with CGF II whereby CGF II made a loan to the Company in the initial principal amount of $5.0 million and a maximum amount available for borrowing of up to $10.0 million with a two-year term, which may be extended an additional year. The interest rate is 10% per annum, and interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016. On December 29, 2017, the CGF II loan was extended one year to December 31, 2018. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Note Exchange and Subscription Agreement (the “Note Exchange Agreement”) in which a note (“CGF2 Note”) with an outstanding principal and accrued interest balance of $3.7 million was exchanged for 738,390 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Growth Fund II, L.C. (“CGF2”), a Company wholly owned by our Chief Executive Officer. The CGF2 Note was cancelled in its entirety effective as of the Effective Date. As a result of the conversion of CGF & CGF2, the Company recognized a gain of $3.7 million, which was recorded in ‘Additional paid-in capital’ in the consolidated balance sheet and an income tax benefit of $0.5 million, which was recorded in the consolidated statement of operations for the three and six months ended June 30, 2018. As of December 31, 2017, $3.6 million, was outstanding in principal and accrued interest under the CGF II loan. On March 22, 2017, the Company entered into a Share Exchange Agreement with the holders of the Company’s Series B Preferred Stock pursuant to which the Company exchanged 772,210 shares of the Company’s Series B Preferred Stock for 772,210 shares of the Company’s newly created Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share. The Series C Preferred Stock has a discretionary dividend feature, as opposed to the mandatory dividend feature in the Series B Preferred Stock. The Series B Preferred Stock, together with all accrued dividends earned through the conversion date, was retired upon re-acquisition and the fair value of the Series C Preferred Stock is recorded in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets. The difference in fair value from the extinguishment of the Series B Preferred Stock and issuance of the Series C Preferred Stock of $1,011 was recorded in the accompanying consolidated statement of operations. For the three and six months ended June 30, 2018, no shares of Series B Preferred Stock were issued. For the six months ended June 30, 2017, 15,663 shares of the Series B Preferred Stock, with a liquidation value of $78, were paid-in-kind, and were retired in the conversion. On March 30, 2018, CDS Asset Management, L.C. (“CAM”), an entity wholly owned by the Company, entered into a master asset management agreement (“the Agreement”) with Comstock Development Services LC (“CDS”), an entity wholly owned by Christopher Clemente, the Chief Executive Officer of the Company. The effective date of this agreement is January 2, 2018. Entering into the Agreement is part of the Company’s strategic plan to transform its business model from for-sale homebuilding to commercial development, asset management and real estate services. The Company intends to concurrently wind down its current for-sale homebuilding business. Pursuant to the Agreement, CDS will pay CAM an annual cost-plus fee (the “Annual Fee”) in an aggregate amount equal to the sum of (i) the employment expenses of personnel dedicated to providing services to the Comstock Real Estate Portfolio pursuant to the Agreement, (ii) the costs and expenses of the Company related to maintaining the listing of its shares on a securities exchange and complying with regulatory and reporting obligations as a public company, and (iii) a fixed annual payment of $1,000,000. During the three and six months ended June 30, 2018, the Company invoiced $2.5 million and $8.5 million, respectively. Additionally, the Company recorded revenue of $2.8 million and $5.6 million for the three and six months ended June 30, 2018, respectively, which is included in ‘Revenue-asset management’ in the consolidated statement of operations.

18. RELATED PARTY TRANSACTIONS

The Company leases its corporate headquarters from an affiliated entity that is wholly-owned by our Chief Executive Officer. Future minimum lease payments under this lease, which expires in 2018, is $0.1 million. For the three months ended June 30, 2018 and 2017, total payments made under this lease agreement were $53 and $52, respectively. For the six months ended June 30, 2018 and 2017, total payments were $107 and $104, respectively.

On February 23, 2009, Comstock Homes of Washington, L.C., a wholly-owned subsidiary of the Company, entered into a Services Agreement with Comstock Asset Management, L.C., an entity wholly-owned by our Chief Executive Officer, to provide services related to real estate development and improvements, including legal, accounting, marketing, information technology and other additional support services. For the three months ended June 30, 2018 and 2017, the Company billed Comstock Asset Management, L.C. $12 and $285, respectively, for services andout-of-pocket expenses. For the six months ended June 30, 2018 and 2017, Comstock Asset Management, L.C. was billed $12 and $488, respectively. Revenues from this arrangement are included within ‘Revenue – real estate services’ in the accompanying consolidated statements of operations. As of June 30, 2018, and December 31, 2017, the Company was owed $12 and $145, respectively, under this contract, which is included in ‘Trade receivables’ in the accompanying consolidated balance sheets.

On October 17, 2014, Comstock Growth Fund (“CGF”), an administrative entity managed by the Company, entered into a subscription agreement with Comstock Development Services, LC (“CDS”), an entity wholly-owned by our Chief Executive Officer, pursuant to which CDS purchased membership interests in CGF for a principal amount of $10 million. Other purchasers who purchased interests in the private placement included members of the Company’s management and board of directors and other third-party, accredited investors for an additional principal amount of $6.2 million (the “CGF Private Placement”).

Simultaneously, on October 17, 2014, the Company entered into an unsecured promissory note with CGF whereby CGF made a loan to the Company in the initial principal amount of $10 million and a maximum capacity of up to $20 million. On December 18, 2014, the loan agreement was amended and restated to provide for a maximum capacity of $25 million. The Company borrowed an additional principal loan amount of $6.2 million under the amended and restated CGF promissory note bringing the total aggregate principal amount borrowed to $16.2 million. The CGF loan initially had a three year term carrying a floating interest rate of LIBOR plus 9.75% with a 10% floor. The loan requires an annual principal repayment in the amount of 10% of the average outstanding balance and a monthly interest payment that will be made in arrears. See Note 12 – Debt for further discussion of transactions entered into with CGF.

On December 18, 2014, CGF entered into amended and restated subscription agreements with CDS, members of the Company’s management and board of directors and the other third party accredited investors who participated in the CGF Private Placement (the “Amended CGF Private Placement”). Under the Amended CGF Private Placement, in addition to the warrants described above, the Company entered into a commitment to grant 226,857 shares of our Class A common stock to the purchasers in the Amended CGF Private Placement. On May 12, 2015, the Company issued 226,857 un-registered shares of its Class A common stock to the purchasers in the Amended CGF Private Placement. The Amended CGF Private Placement was closed for additional investments on May 15, 2015. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Membership Interest Exchange and Subscription Agreement (the “Membership Exchange Agreement”), together with a revised promissory note agreement, in which a note (“CGF Note”) with an outstanding principal and accrued interest balance of $7.7 million was exchanged for 1,482,300 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Development Services, LLC (“CDS”), a Company wholly owned by our Chief Executive Officer. The Company exchanged the preferred equity for 91.5% of CDS membership interest in the Comstock Growth Fund promissory note. Concurrently, the face amount of the CGF Note was reduced to $5.7 million as of the Effective Date.

On December 29, 2015, the Company and Stonehenge Funding, L.C. (“Stonehenge”), an entity wholly owned by our Chief Executive Officer, entered into a Note Exchange and Subscription Agreement pursuant to which the note in the original principal amount of $4.5 million issued to the Company by Stonehenge was cancelled in its entirety and exchanged for 772,210 shares of the Company’s Series B Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share (the “Series B Preferred Stock”). The number of shares of Series B Preferred Stock received by Stonehenge in exchange for the note represented the principal amount outstanding plus accrued interest under the note as of December 29, 2015, which was $3.9 million. The holders of Series B Preferred Stock earn dividends at a rate of 8.75% per annum accruing from the effective date of the Note Exchange and Subscription Agreement.

On December 29, 2015, Comstock Growth Fund II, L.C. (“CGF II”), an administrative entity managed by the Company was created for the purpose of extending loans to the Company. CGF II entered into a subscription agreement with CDS pursuant to which CDS purchased membership interests in CGF II for an initial aggregate principal amount of $5.0 million (the “CGF II Private Placement”). Also on December 29, 2015, the Company entered into a revolving line of credit promissory note with CGF II whereby CGF II made a loan to the Company in the initial principal amount of $5.0 million and a maximum amount available for borrowing of up to $10.0 million with a two-year term, which may be extended an additional year. The interest rate is 10% per annum, and interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016. On December 29, 2017, the CGF II loan was extended one year to December 31, 2018. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Note Exchange and Subscription Agreement (the “Note Exchange Agreement”) in which a note (“CGF2 Note”) with an outstanding principal and accrued interest balance of $3.7 million was exchanged for 738,390 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Growth Fund II, L.C. (“CGF2”), a Company wholly owned by our Chief Executive Officer. The CGF2 Note was cancelled in its entirety effective as of the Effective Date. As a result of the conversion of CGF & CGF2, the Company recognized a gain of $3.7 million, which was recorded in ‘Additional paid-in capital’ in the consolidated balance sheet and an income tax benefit of $0.5 million, which was recorded in the consolidated statement of operations for the three and six months ended June 30, 2018. As of December 31, 2017, $3.6 million, was outstanding in principal and accrued interest under the CGF II loan.

On March 22, 2017, the Company entered into a Share Exchange Agreement with the holders of the Company’s Series B Preferred Stock pursuant to which the Company exchanged 772,210 shares of the Company’s Series B Preferred Stock for 772,210 shares of the Company’s newly created Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share. The Series C Preferred Stock has a discretionary dividend feature, as opposed to the mandatory dividend feature in the Series B Preferred Stock. The Series B Preferred Stock, together with all accrued dividends earned through the conversion date, was retired upon re-acquisition and the fair value of the Series C Preferred Stock is recorded in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets. The difference in fair value from the extinguishment of the Series B Preferred Stock and issuance of the Series C Preferred Stock of $1,011 was recorded in the accompanying consolidated statement of operations. For the three and six months ended June 30, 2018, no shares of Series B Preferred Stock were issued. For the six months ended June 30, 2017, 15,663 shares of the Series B Preferred Stock, with a liquidation value of $78, were paid-in-kind, and were retired in the conversion.

On March 30, 2018, CDS Asset Management, L.C. (“CAM”), an entity wholly owned by the Company, entered into a master asset management agreement (“the Agreement”) with Comstock Development Services LC (“CDS”), an entity wholly owned by Christopher Clemente, the Chief Executive Officer of the Company. The effective date of this agreement is January 2, 2018. Entering into the Agreement is part of the Company’s strategic plan to transform its business model from for-sale homebuilding to commercial development, asset management and real estate services. The Company intends to concurrently wind down its current for-sale homebuilding business.

Pursuant to the Agreement, CDS will pay CAM an annual cost-plus fee (the “Annual Fee”) in an aggregate amount equal to the sum of (i) the employment expenses of personnel dedicated to providing services to the Comstock Real Estate Portfolio pursuant to the Agreement, (ii) the costs and expenses of the Company related to maintaining the listing of its shares on a securities exchange and complying with regulatory and reporting obligations as a public company, and (iii) a fixed annual payment of $1,000,000. During the three and six months ended June 30, 2018, the Company invoiced $2.5 million and $8.5 million, respectively. Additionally, the Company recorded revenue of $2.8 million and $5.6 million for the three and six months ended June 30, 2018, respectively, which is included in ‘Revenue-asset management’ in the consolidated statement of operations.