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v3.20.2

Debt - Additional Information (Detail) |  |  |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 19, 2020 USD ($) | Dec. 31, 2019 USD ($) SecurityLoan promissory_note $ / shares | May 23, 2018 USD ($) $ / shares shares | Oct. 17, 2014 USD ($) | Sep. 30, 2020 USD ($) $ / shares | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) $ / shares | Sep. 30, 2019 USD ($) | Mar. 27, 2020 USD ($) | Dec. 18, 2014 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt outstanding balance |  |  |  |  | $ 5,522,000 |  | $ 5,522,000 |  |  |
Secured loan due on fourth anniversary |  |  |  |  | 50,000 |  | 50,000 |  |  |
Due to affiliate |  | $ 5,706,000 |  |  | $ 5,500,000 |  | $ 5,500,000 |  |  |
Redeemable Series C Preferred Stock |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock par value (in dollars per share) | $ / shares |  | $ 0.01 |  |  | $ 0.01 |  | $ 0.01 |  |  |
Comstock Growth Fund |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Interest payments |  |  |  |  | $ 100,000 | $ 200,000 | $ 300,000 | $ 400,000 |  |
CDS | Revolving Capital Line of Credit Agreement | Secured Financing |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument term (in years) | 5 years |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 10,000,000.0 |  |  |  |  |  |  |  |  |
Debt instrument maturity date from initial date | 12 months |  |  |  |  |  |  |  |  |
Capital line of credit borrowed |  |  |  |  |  |  |  |  | $ 5,500,000 |
WSJ Prime Rate | Revolving Capital Line of Credit Agreement |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument spread variable rate | 1.00% |  |  |  |  |  |  |  |  |
Unsecured Seller-financed Promissory Note |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Number of unsecured seller-financed promissory note outstanding | promissory_note |  | 1 |  |  |  |  |  |  |  |
Debt outstanding balance |  | $ 595,000 |  |  |  |  |  |  |  |
Secured loan due on third anniversary |  |  |  |  | 50,000 |  | $ 50,000 |  |  |
Interest rate for period |  | 5.00% |  |  |  |  |  |  |  |
Debt instrument term (in years) |  |  |  |  |  |  | 1 year |  |  |
Debt instrument, balance amount |  |  |  |  | $ 22,000 |  | $ 22,000 |  |  |
Unsecured Seller-financed Promissory Note | LIBOR Rate |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument spread variable rate |  |  |  |  |  |  | 3.00% |  |  |
Secured Financing |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Number of secured loans | SecurityLoan |  | 2 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  | 6.50% |  | 6.50% |  |  |
Secured Loan One |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Outstanding secured debt |  | $ 667,000 |  |  |  |  |  |  |  |
Secured Loan Two |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Outstanding secured debt |  | 27,000 |  |  |  |  |  |  |  |
Unsecured Notes Payable to Affiliate | Comstock Growth Fund |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Due to affiliate |  | $ 5,700,000 |  |  |  |  |  |  |  |
Unsecured Notes Payable to Affiliate | Comstock Growth Fund | Membership Exchange Agreement |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  | $ 5,700,000 |  |  |  |  |
Notes Payable, Other Payables | Membership Exchange Agreement |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Principal payments to CGF |  |  |  |  |  | 0 |  | 0 |  |
Notes Payable, Other Payables | Revolving Capital Line of Credit Agreement |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Principal payments to CGF |  |  |  |  | $ 0 | $ 0 | $ 0 | $ 0 |  |
Notes Payable, Other Payables | Comstock Growth Fund |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument term (in years) |  |  |  | 3 years |  |  |  |  |  |
Debt instrument, initial principal amount |  |  |  | $ 10,000,000.0 |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 20,000,000.0 |  |  |  |  |  | $ 25,000,000
Notes Payable, Other Payables | Comstock Growth Fund | Membership Exchange Agreement |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of membership interest |  |  | 91.50% |  |  |  |  |  |  |
Debt instrument reduction |  |  | $ 5,700,000 |  |  |  |  |  |  |
Debt instrument fixed interest rate (in percentage) |  |  | 10.00% |  |  |  |  |  |  |
Due to affiliate |  |  | $ 7,700,000 |  |  |  |  |  |  |
Notes Payable, Other Payables | Comstock Growth Fund | Membership Exchange Agreement | Series C Non-Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Convertible preferred shares issued upon conversion (in shares) | shares |  |  | 1,482,300 |  |  |  |  |  |  |
Preferred stock par value (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |  |  |  |
Notes Payable, Other Payables | Comstock Growth Fund | Membership Exchange Agreement | Redeemable Series C Preferred Stock |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock liquidation value (in dollars per share) | $ / shares |  |  | $ 5.00 |  |  |  |  |  |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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