Class of warrant or right number of warrants issued during period.

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- Definition

Class Of Warrant Or Right Value Of Warrants Issued During Period

+ References

No definition available.

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- Definition

Number Of Warrants Issued

+ References

No definition available.

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- Definition

Percentage over members capital account for purchase price.

+ References

No definition available.

+ Details

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- Definition

Sale of stock consideration received on transaction in private placement.

+ References

No definition available.

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- Definition

Subscription from membership interest maximum capital amount in private placement.

+ References

No definition available.

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- Definition

Subscription From Membership Interest Maximum Capital Amount In Private Placement Additional

+ References

No definition available.

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- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

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- Definition

Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

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- Definition

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685

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- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Consolidation of Variable Interest Entities - Additional Information (Detail) - USD ($)	1 Months Ended					12 Months Ended
	Oct. 31, 2017	Jan. 31, 2017	Aug. 31, 2016	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2016
Variable Interest Entity [Line Items]
Distribution to non-controlling interests						$ 1,750,000	$ 6,432,000
Total assets of VIEs						19,300,000	30,600,000
Total liabilities of VIEs						12,600,000	15,900,000
Comstock Investors VIII, L.C [Member]
Variable Interest Entity [Line Items]
Cumulative, compounded, preferred return rate					20.00%
Percentage of cumulative cash on cash return					20.00%
Comstock Investors VIII, L.C [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests		$ 1,900,000
Comstock Investors VIII, L.C [Member] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued					15,000
Aggregate fair value of warrants for investors					$ 131,000
Comstock Investors VIII, L.C [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise					$ 4,000,000
Comstock Investors IX, L.C. [Member]
Variable Interest Entity [Line Items]
Cumulative, compounded, preferred return rate				20.00%
Percentage of cumulative cash on cash return				20.00%
Comstock Investors IX, L.C. [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests	$ 3,500,000
Comstock Investors IX, L.C. [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise				$ 2,500,000
Comstock Investors X, L.C. [Member]
Variable Interest Entity [Line Items]
Cumulative, compounded, preferred return rate			6.00%
Distribution to non-controlling interests						$ 1,800,000	$ 1,000,000
Aggregate capital raise	19,500,000
Additional capital raised	$ 5,000,000
Warrants issued	50,000
Aggregate fair value	$ 258,000
Comstock Investors X, L.C. [Member] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued			150,000
Aggregate fair value of warrants for investors			$ 258,000
Comstock Investors X, L.C. [Member] \| Private Placement [Member]
Variable Interest Entity [Line Items]
Aggregate capital raise			14,500,000					$ 14,500,000
Comstock Investors X, L.C. [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise			$ 5,000,000
Comstock Development Services LC [Member] \| Private Placement [Member]
Variable Interest Entity [Line Items]
Aggregate capital raise								$ 9,500,000