Consolidated Statements of Cash Flows $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Cash flows from operating activities:
Net income	$ 101,656	$ 21,120
Adjustments to reconcile net income to net cash from operating activities:
Accretion of asset retirement obligations	1,485	461
Depreciation and amortization	29,898	18,861
Amortization of debt issuance costs	367	96
Stock-based compensation	6,192	3,919
Other income - gain on sale of mineral rights	(2,113)
Other income - employee retention tax credit		(5,407)
Deferred income taxes	11,579	1,650
Changes in operating assets and liabilities:
Accounts receivable	(5,905)	(17,293)
Prepaid expenses and other current assets	1,242	5,611
Inventories	(24,237)	(1,933)
Other assets and liabilities	91	760
Accounts payable	12,432	7,515
Accrued expenses	26,112	2,397
Net cash from operating activities	158,799	37,757
Cash flow from investing activities:
Capital expenditures	(91,384)	(17,642)
Proceeds from sale of mineral rights	2,000
Net cash from investing activities	(111,837)	(17,642)
Cash flows from financing activities:
Proceeds from borrowings	17,000	50,545
Proceeds from stock option exercises	107
Payment of dividends	(14,996)
Payments of debt issuance cost		(2,356)
Repayment of borrowings	(17,066)	(24,900)
Repayments of financed insurance payable	(280)	(862)
Repayments of financing leased equipment	(3,760)	(1,253)
Restricted stock surrendered for withholding taxes payable	(2,871)	(327)
Net cash from financing activities	(21,866)	20,847
Net change in cash and cash equivalents and restricted cash	25,096	40,962
Cash and cash equivalents and restricted cash, beginning of period	22,806	6,710
Cash and cash equivalents and restricted cash, end of period	47,902	47,672
Supplemental cash flow information:
Cash paid for interest	4,680	852
Cash paid for taxes	15,500
Non-cash investing and financing activities:
Leased assets obtained under new financing leases	4,259	9,157
Financed equipment purchases	5,730
Capital expenditures included in accounts payable and accrued expenses	9,004	3,128
Additional asset retirement obligations incurred	4,682	$ 235
Accrued dividends payable	4,994
Ramaco Coal Asset Acquisition
Cash flow from investing activities:
Acquisition of assets	(11,738)
Non-cash investing and financing activities:
Coal acquisition	56,551
Maben Asset Acquisition
Cash flow from investing activities:
Acquisition of assets	(10,715)
Non-cash investing and financing activities:
Coal acquisition	$ 21,000