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Commitments and Contingencies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies [Abstract]
Rent expense	$ 2,010,547	$ 2,155,950	$ 472,654
Royalty Agreement [Member]
Loss Contingencies [Line Items]
Minimum payments under commitment	64,000
Amount of annual increase in payments	5,000
Royalties expensed	177,379	58,100	42,600
7.5% Series A-1 Convertible Preferred Stock [Member]
Loss Contingencies [Line Items]
Stock issued for related party leases	$ 862,500
Minimum [Member] | Royalty Agreement [Member]
Loss Contingencies [Line Items]
Percentage of royalty obligations	0.50%
Maximum [Member] | Royalty Agreement [Member]
Loss Contingencies [Line Items]
Percentage of royalty obligations	6.00%

X

- Definition

Annual Lease Payment.

+ References

No definition available.

+ Details

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Namespace Prefix:	lode_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Long Term Purchase Commitment, Amount Of Annual Increase.

+ References

No definition available.

+ Details

Name:	lode_LongTermPurchaseCommitmentAmountOfAnnualIncrease
Namespace Prefix:	lode_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage Net Smelter Return Royalty.

+ References

No definition available.

+ Details

Name:	lode_PercentageNetSmelterReturnRoyalty
Namespace Prefix:	lode_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Definition

Royalty expense incurred and are directly related to goods produced and sold and services rendered during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2(a),(d))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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

X

- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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

X

- Details

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

X

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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Balance Type:	debit
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