The minimum unrestricted cash required by the debt agreement.

No definition available.

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Namespace Prefix:	hymc_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

+ Details

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Period Type:	duration

- Definition

The value of notes retired (or transferred to another entity) in noncash investing or financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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Balance Type:
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- Details

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Balance Type:
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- Details

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- Details

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Subsequent Events (Details) - USD ($)			9 Months Ended
Subsequent Events (Details) - USD ($)	Oct. 08, 2021	Oct. 06, 2021	Jun. 30, 2022	Nov. 09, 2021	Sep. 30, 2021
Sprott Credit Agreement
Subsequent Event [Line Items]
Minimum unrestricted cash					$ 10,000,000
Subsequent event \| Sprott Credit Agreement
Subsequent Event [Line Items]
Minimum unrestricted cash				$ 9,000,000
Subsequent event \| Randy Buffington
Subsequent Event [Line Items]
Notes reduction in exchange for stock		$ 700,000
Debt conversion, number of shares issued	137,500
Subsequent event \| Randy Buffington \| Forecast
Subsequent Event [Line Items]
Debt conversion, number of shares issued			275,000