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Long-Term Reclamation Liability - Reconciliation of Aggregate Retirement Liability (Details) - USD ($) | 9 Months Ended | 12 Months Ended
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Sep. 30, 2020 | Dec. 31, 2019
Mine Reclamation and Closing Liability [Roll Forward] |  |
Long-term reclamation liability — beginning of period | $ 6,034,208 | $ 7,441,091
Reduction of obligation | 0 | (410,018)
Amount reclassified to liabilities held for sale | 0 | (1,019,705)
Accretion of reclamation liability | 15,533 | 22,840
Long-term reclamation liability — end of period | $ 6,049,741 | $ 6,034,208

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- Definition Asset Retirement Obligation, Accretion Expense Accrued. + References No definition available. + Details
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- Definition Asset Retirement Obligation, Reclassification to Liabilities Held-for-sale + References No definition available. + Details
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Namespace Prefix: | lode_
Data Type: | xbrli:monetaryItemType
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- Definition Mine Reclamation and Closing Liability [Roll Forward] + References No definition available. + Details
Name: | lode_MineReclamationandClosingLiabilityRollForward
Namespace Prefix: | lode_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 35 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6392603&loc=d3e7123-110846 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- Definition Amount of a reclamation and mine closing liability that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and revegetation of waste rock piles and other disturbed areas. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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Period Type: | instant