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v3.19.1

Related Party Transactions - Additional Information (Detail) - USD ($) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 29, 2015 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | May 23, 2018
Related Party Transaction [Line Items] |  |  |  |  |
Future minimum lease payments |  | $ 400,000 |  |  |
Total rental payments made under lease agreement |  | 138,000 | $ 53,000 |  |
Rent expense |  | 138,000 | 53,000 |  |
Revenue-asset management |  | 11,358,000 | 8,799,000 |  |
Credit facility outstanding | $ 5,000,000 |  |  |  |
Income tax expense (benefit) |  | 3,000 | 6,000 |  |
Comstock Growth Fund II, L.C. [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Gain loss on conversion of notes |  | 3,700,000 |  |  |
Income tax expense (benefit) |  | (500,000) |  |  |
Comstock Growth Fund II, L.C. [Member] | Notes Payable, Other Payables [Member] | Note Exchange Agreement [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Credit facility outstanding |  |  |  |  | $ 3,700,000
Asset Management [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenue-asset management |  | 3,652,000 | $ 2,791,000 |  |
Comstock Asset Management, L.C. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Fixed annual payment |  | 1,000,000 |  |  |
Comstock Asset Management, L.C. [Member] | Services and out of Pocket Expenses Incurred [Member] | Revenue - Real Estate Services [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Services and out-of-pocket expenses incurred |  |  |  | $ 120,000 |
Comstock Asset Management, L.C. [Member] | Asset Management [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenue-asset management |  | $ 3,600,000 |  |  |
Stonehenge [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Original principal amount | 4,500,000 |  |  |  |
Principal amount outstanding plus all accrued but unpaid interest | $ 3,900,000 |  |  |  |
Stonehenge [Member] | Series B Preferred Stock [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Shares issued upon conversion of debt | 772,210 |  |  |  |
Preferred stock par value per share | $ 0.01 |  |  |  |
Preferred stock redemption price | $ 5.00 |  |  |  |
Preferred stock dividend rate, percentage | 8.75% |  |  |  |
Comstock Growth Fund II, L.C. [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Maximum borrowing amount | $ 10,000,000 |  |  |  |
Debt instrument, term | 2 years |  |  |  |
Debt instrument, floor interest rate | 10.00% |  |  |  |
Debt instrument, interest payment terms |  | 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. |  |  |
Line of credit facility additional extension period | 1 year |  |  |  |
Comstock Growth Fund II, L.C. [Member] | Comstock Growth Fund II, L.C. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Debt instrument, initial principal amount | $ 5,000,000 |  |  |  |
Series C- Non Convertible Preferred Stock [Member] | Comstock Growth Fund II, L.C. [Member] | Notes Payable, Other Payables [Member] | Note Exchange Agreement [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Preferred stock par value per share |  |  |  |  | $ 0.01
Convertible preferred shares issued upon conversion |  |  |  |  | 738,390
Series C Preferred Stock [Member] | Comstock Growth Fund II, L.C. [Member] | Notes Payable, Other Payables [Member] | Note Exchange Agreement [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Preferred stock liquidation value per share |  |  |  |  | $ 5.00

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