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NOTES RECEIVABLE AND ADVANCES, NET - Tonogold Note Receivable (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 26, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Change in fair value Tonogold note receivable | $ 0 | $ 605,000 |
Tonogold |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable current, before fair value adjustments |  | $ 6,650,000 | $ 6,650,000

X
- Definition Increase (Decrease) in Value of Tonogold Note Receivable Recognized in Income + References No definition available. + Details
Name: | lode_IncreaseDecreaseInValueOfTonogoldNoteReceivableRecognizedInIncome
Namespace Prefix: | lode_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Notes Receivable Current, Before Fair Value Adjustments + References No definition available. + Details
Name: | lode_NotesReceivableCurrentBeforeFairValueAdjustments
Namespace Prefix: | lode_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- 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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CounterpartyNameAxis=lode_TonogoldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |