XML 62 R47.htm IDEA: XBRL DOCUMENT v3.20.2

Assets and Liabilities Held for Sale - Narrative (Details)			3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 01, 2022 USD ($)	Sep. 01, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Sep. 26, 2020 a	Sep. 08, 2020	Sep. 26, 2019 USD ($) a
Property, Plant and Equipment [Line Items]
Total assets held for sale			$ 6,328,338		$ 6,328,338		$ 10,512,066
Impairment expense							500,000
Lessee option to purchase underlying asset, amount		$ 2,700,000
Depreciation expense			800,000	$ 400,000	1,100,000	$ 1,100,000
Silver springs
Property, Plant and Equipment [Line Items]
Impairment expense							500,000
Tonogold Resources, Inc.
Property, Plant and Equipment [Line Items]
Sale of membership interest									100.00%
Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs
Property, Plant and Equipment [Line Items]
Proceeds from assets held for sale					400,000
Industrial, land and senior water rights
Property, Plant and Equipment [Line Items]
Area of land | a								98
Commercial land
Property, Plant and Equipment [Line Items]
Area of land | a								160
Daney Ranch (Land and buildings)
Property, Plant and Equipment [Line Items]
Lease payments		9,000
Lessee option to purchase underlying asset, amount		$ 2,700,000
Depreciation expense			500,000
Daney Ranch (Land and buildings) | Forecast
Property, Plant and Equipment [Line Items]
Lease payments	$ 10,000
Gold Hill Hotel (Land and buildings)
Property, Plant and Equipment [Line Items]
Depreciation expense			200,000
Disposal Group, Held-for-sale, Not Discontinued Operations
Property, Plant and Equipment [Line Items]
Total assets held for sale			6,328,338		6,328,338		10,512,066
Disposal Group, Held-for-sale, Not Discontinued Operations | Silver springs
Property, Plant and Equipment [Line Items]
Number of properties sold | a										2
Disposal Group, Held-for-sale, Not Discontinued Operations | Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs
Property, Plant and Equipment [Line Items]
Total assets held for sale										$ 3,600,000
Disposal Group, Held-for-sale, Not Discontinued Operations | Industrial, land and senior water rights | Silver springs
Property, Plant and Equipment [Line Items]
Area of land | a										98
Disposal Group, Held-for-sale, Not Discontinued Operations | 98 Acres | Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs
Property, Plant and Equipment [Line Items]
Total assets held for sale										$ 6,500,000
Disposal Group, Held-for-sale, Not Discontinued Operations | Commercial land | Silver springs
Property, Plant and Equipment [Line Items]
Area of land | a										160
Disposal Group, Held-for-sale, Not Discontinued Operations | Daney Ranch (Land and buildings)
Property, Plant and Equipment [Line Items]
Total assets held for sale			0		0		2,146,575
Disposal Group, Held-for-sale, Not Discontinued Operations | Gold Hill Hotel (Land and buildings)
Property, Plant and Equipment [Line Items]
Total assets held for sale			$ 0		$ 0		$ 478,366

X

- Definition

Lessor, Operating Lease, Lessee Option to Purchase Underlying Asset, Value

+ References

No definition available.

+ Details

Name:	lode_LessorOperatingLeaseLesseeOptionToPurchaseUnderlyingAssetValue
Namespace Prefix:	lode_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number Of Properties Disposed

+ References

No definition available.

+ Details

Name:	lode_NumberOfPropertiesDisposed
Namespace Prefix:	lode_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Sale of Membership Interest in Subsidiaries

+ References

No definition available.

+ Details

Name:	lode_SaleOfMembershipInterestInSubsidiaries
Namespace Prefix:	lode_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=121558832&loc=d3e400-110220

+ Details

Name:	us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: 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=121586364&loc=d3e3602-108585

+ Details

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ 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=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2611-110228

+ Details

Name:	us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 6A
-URI http://asc.fasb.org/extlink&oid=121640914&loc=SL77927221-108306

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919372-209981

+ Details

Name:	us-gaap_OperatingLeaseLeaseIncomeLeasePayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfPropertyHeldForSale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=lode_SilverSpringsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=lode_TonogoldResourcesInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=lode_DowntownSilverSpringsLLCEquityPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=lode_IndustrialLandAndSeniorWaterRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=lode_CommercialLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=lode_DaneyRanchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=lode_GoldHillHotelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=lode_A98AcresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: