The annual reduction in penalty for prepayment.

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Annual percentage penalty to be paid in the event of prepayment.

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Number of periodic payments to be made.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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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.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Note 4 - Debt (Details) $ in Thousands			6 Months Ended
Note 4 - Debt (Details) $ in Thousands	Apr. 29, 2022 USD ($) installment	Jul. 13, 2021 USD ($)	Jun. 30, 2022 USD ($) installment	Jan. 11, 2022 USD ($)	Oct. 29, 2021 USD ($)	Oct. 28, 2021 USD ($)	Aug. 24, 2021 USD ($)	Aug. 16, 2021 USD ($)	Jul. 23, 2021 USD ($)	Apr. 16, 2020 USD ($)
Senior Notes.
Debt
Aggregate principal amount		$ 34,500	$ 34,500
Debt issuance costs incurred		$ 2,400
Effective interest rate			10.45%
Interest rate		9.00%	9.00%
Unamortized premium/discount			$ 1,900
Redemption price percentage			100.00%
Ramaco Coal Loan
Debt
Aggregate principal amount	$ 55,000
Amount paid per installment	$ 10,000
Number of installments \| installment	7
Frequency of periodic payment	quarterly
Interest rate	9.00%
Periodic payment	$ 10,000
Outstanding principal amount			$ 50,000
Convertible Debt	30,000
Ramaco Coal Loan \| Initial Period For Periodic Payments Under Debt Instrument [Member]
Debt
Amount paid per installment	5,000
Periodic payment	$ 5,000
KeyBank National Association \| Revolving Credit Facility
Debt
Line of Credit Facility, Maximum Borrowing Capacity					$ 40,000	$ 30,000
Amount of remaining availability			$ 39,600
KeyBank National Association \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt
Debt Instrument, Basis Spread on Variable Rate			2.00%
KeyBank National Association \| Revolving Credit Facility \| Base Rate
Debt
Debt Instrument, Basis Spread on Variable Rate			1.50%
KeyBank National Association \| Revolving Credit Facility \| Fed Funds Effective Rate Overnight Index Swap Rate
Debt
Debt Instrument, Basis Spread on Variable Rate			0.50%
KeyBank National Association \| Letter of Credit
Debt
Line of Credit Facility, Maximum Borrowing Capacity						3,000
Outstanding on Revolving Credit Facility			$ 400
KeyBank National Association \| Term Loan
Debt
Aggregate principal amount						$ 10,000
Amount paid per installment			$ 278
Frequency of periodic payment			monthly
Long-term Debt, Total			$ 1,700
Periodic payment			$ 278
KeyBank National Association \| Term Loan \| London Interbank Offered Rate (LIBOR)
Debt
Debt Instrument, Basis Spread on Variable Rate			5.15%
KeyBank National Association \| Equipment Loan
Debt
Aggregate principal amount										$ 4,700
Amount paid per installment			$ 147
Number of installments \| installment			36
Frequency of periodic payment			monthly
Long-term Debt, Total			$ 1,400
Annual percent of premium prepayment			3.00%
Annual premium decline in premium prepayment			1.00%
Interest rate			7.45%
Periodic payment			$ 147
J. H. Fletcher & Co \| Equipment Loan
Debt
Aggregate principal amount							$ 3,900		$ 900
Amount paid per installment			$ 200
Number of installments \| installment			24
Frequency of periodic payment			monthly
Long-term Debt, Total			$ 3,300
Interest rate			0.00%
Periodic payment			$ 200
Komatsu Financial Limited Partnership \| Equipment Loan
Debt
Aggregate principal amount								$ 1,000
Amount paid per installment			$ 28
Number of installments \| installment			36
Frequency of periodic payment			monthly
Long-term Debt, Total			$ 700
Interest rate			4.60%
Periodic payment			$ 28
Komatsu Financial Limited Partnership \| Equipment Loan \| Initial Period For Periodic Payments Under Debt Instrument [Member]
Debt
Amount paid per installment			36
Periodic payment			36
Brandeis Machinery & Supply Company \| Equipment Loan
Debt
Aggregate principal amount				$ 1,400
Amount paid per installment			$ 24
Number of installments \| installment			48
Frequency of periodic payment			monthly
Long-term Debt, Total			$ 900
Interest rate			4.80%
Periodic payment			$ 24