Note 11 - Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
On-Going Administrative Services
Royalties paid	$ 23
Related party fees		$ 9
Ramaco Coal, LLC
Royalties paid	2,000	$ 1,100
Ramaco Coal, LLC \| Accounts Payable and Accrued Liabilities \| Mineral Lease and Surface Rights Agreements
Due to Related Parties, Total	$ 900		$ 400

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

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+ Details

- Definition

Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

+ References

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