Note 4 - Debt - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Total debt	$ 142,369	$ 127,226
Current portion of long-term debt	45,333	75,639
Long term debt, net	97,036	51,587
Revolving Credit Facility
Total debt	67,500	25,000
Equipment loans
Total debt	5,608	8,396
Senior Notes, net
Total debt	33,061	32,830
Financing of Ramaco Coal acquisition - Related party debt
Total debt	20,000	40,000
Financing of Maben Coal acquisition
Total debt	$ 16,200	$ 21,000