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Commitments and Contingencies (Details) (USD $) | 6 Months Ended
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Jun. 30, 2014
Third Party [Member] |
Operating Leased Assets [Line Items] |
Minimum annual lease payments | $ 52,400
Affiliated Entity [Member] |
Operating Leased Assets [Line Items] |
Minimum annual lease payments | 880,500
Annual lease payment | 862,500
Amount of commitment | 34,500,000.0
Operating lease, future minimum payments | $ 31,050,000.00
Minimum [Member] |
Loss Contingencies [Line Items] |
Percentage of royalty obligations | 0.50%
Maximum [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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Balance Type: | credit
Period Type: | duration

X
- Definition Percentage Net Smelter Return Royalty. + References No definition available. + Details
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Namespace Prefix: | lode_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Details
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Data Type: | xbrli:stringItemType
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Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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X
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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Period Type: | instant

X
- Definition Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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