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The number of financial institutions held the percentage of stock to be considered a related party.

No definition available.

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The number of financial institutions in which debt has been issued.

No definition available.

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Units, Issued

No definition available.

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Face (par) amount of debt instrument at time of issuance.

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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Amount of interest expense incurred on a debt or other obligation to related party.

No definition available.

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Amount of transactions with related party during the financial reporting period.

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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.

No definition available.

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Name:	srt_CounterpartyNameAxis=hymc_MudrickCapitalAcquisitionCorporationMember
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Name:	us-gaap_DebtInstrumentAxis=hymc_NewSubordinatedNotesMember
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