Represents the amount of monthly installments under a debt agreement.

No definition available.

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Namespace Prefix:	metc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of installments.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Balance Type:	na
Period Type:	instant

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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.

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Period Type:	duration

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

Note 7 - Debt - Komatsu Financial Limited Partnership Loan (Details) - USD ($) $ in Thousands		12 Months Ended
	Aug. 16, 2021	Dec. 31, 2023	Oct. 31, 2022
Debt
Long-term Debt, Total		$ 91,383
Komatsu Financial Limited Partnership \| Equipment loans
Debt
Aggregate principal amount	$ 1,000		$ 700
Interest rate	4.60%
Frequency of periodic payment		monthly
Number Of Monthly Installments		36 months
Long-term Debt, Total		$ 600
Amount paid per installment	$ 28
Komatsu Financial Limited Partnership \| Equipment loans \| Initial Period For Periodic Payments Under Debt Instrument [Member]
Debt
Amount of monthly installments	$ 36