Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 22,864	$ 41,962
Accounts receivable	62,905	96,866
Inventories	53,051	37,163
Prepaid expenses and other	7,853	13,748
Total current assets	146,673	189,739
Property, plant, and equipment, net	476,748	459,091
Financing lease right-of-use assets, net	12,014	10,282
Advanced coal royalties	3,884	2,964
Other	6,076	3,760
Total Assets	645,395	665,836
Current liabilities
Accounts payable	53,783	51,624
Accrued liabilities	48,378	52,225
Current portion of asset retirement obligations	110	110
Current portion of long-term debt	383	56,534
Current portion of financing lease obligations	6,134	5,456
Insurance financing liability		4,037
Total current liabilities	108,788	169,986
Asset retirement obligations, net	31,325	28,850
Long-term debt, net	43,141	349
Long-term financing lease obligations, net	6,684	4,915
Senior notes, net	33,646	33,296
Deferred tax liability, net	54,573	54,352
Other long-term liabilities	5,414	4,483
Total liabilities	283,571	296,231
Commitments and contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued or outstanding
Additional paid-in capital	281,079	277,133
Retained earnings	80,220	91,944
Total stockholders' equity	361,824	369,605
Total Liabilities and Stockholders' Equity	645,395	665,836
Class A Common Stock
Stockholders' Equity
Common stock	438	440
Class B Common Stock
Stockholders' Equity
Common stock	$ 87	$ 88