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Note 7 - Debt (Tables) | 12 Months Ended
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Dec. 31, 2022
Debt Disclosure [Abstract] |
Schedule of outstanding debt | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
(In thousands) |  | 2022 |  | 2021
Term loan | ​ | $ | — | ​ | $ | 3,334
Revolving Credit Facility | ​ |  | 25,000 | ​ |  | —
Equipment loans | ​ | ​ | 8,396 | ​ | ​ | 7,679
Senior Notes, net | ​ |  | 32,830 | ​ |  | 32,363
Financing of Ramaco Coal acquisition - Related party debt | ​ | ​ | 40,000 | ​ | ​ | —
Financing of Maben Coal acquisition | ​ | ​ | 21,000 | ​ | ​ | —
Total debt | ​ | $ | 127,226 | ​ | $ | 43,376
Current portion of long-term debt | ​ |  | 75,639 | ​ |  | 7,674
Long-term debt, net | ​ | $ | 51,587 | ​ | $ | 35,702
​
Schedule of maturities of long-term debt | ​
​ | ​ | ​ | ​
(In thousands) | ​ | ​ | ​
Years ending December 31: |  | ​
2023 | ​ | $ | 75,639
2024 | ​ |  | 18,406
2025 | ​ | ​ | 351
2026 | ​ | ​ | 34,500
2027 | ​ | ​ | —
Total debt | ​ | $ | 128,896
​ | ​ | ​ | ​

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