Note 11 - Related Party Transactions (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
May 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Payment of minimum royalties		$ 9.0	$ 1.9
Ramaco Coal, LLC \| Related Party Borrowings [Member]
Proceeds from Related Party Debt	$ 3.0
Debt Instrument, Interest Rate, Stated Percentage	10.00%
Ramaco Coal, LLC \| Accounts Payable and Accrued Liabilities \| Mineral Lease and Surface Rights Agreements
Due to Related Parties, Total		$ 0.5	$ 2.9

The amount of cash paid for minimum royalties during the current period.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

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- Definition

The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

+ References

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