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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.

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Note 10 - Related Party Transactions (Details Textual) - USD ($)	1 Months Ended	9 Months Ended
	May 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018	Dec. 31, 2017
Proceeds from Related Party Debt		$ 3,000,000
Ramaco Coal, LLC [Member] \| Related Party Borrowings [Member]
Proceeds from Related Party Debt	$ 3,000,000
Debt Instrument, Interest Rate, Stated Percentage	10.00%
Short-term Debt, Total		3,000,000		$ 3,000,000
Ramaco Coal, LLC [Member] \| Accounts Payable and Accrued Liabilities [Member] \| Mineral Lease and Surface Rights Agreements [Member]
Due to Related Parties, Total		$ 3,000,000			$ 100,000