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Commitments and Contingencies (Narrative) (Details) (USD $) | 12 Months Ended
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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% |  |

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- Definition Annual Lease Payment. + References No definition available. + Details
Name: | lode_AnnualLeasePayment
Namespace Prefix: | lode_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- 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

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

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- 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
Name: | us-gaap_DirectOperatingCostRoyaltyExpense
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
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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 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration