Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 71,472	$ 21,891
Accounts receivable	47,647	44,453
Inventories	19,543	15,791
Prepaid expenses and other	2,939	4,626
Total current assets	141,601	86,761
Property, plant and equipment, net	245,930	227,077
Financing lease right-of-use assets, net	12,296	9,128
Advanced coal royalties	4,645	5,576
Other	1,892	491
Total Assets	406,364	329,033
Current liabilities
Accounts payable	40,406	15,346
Accrued expenses	23,946	19,410
Asset retirement obligations	489	489
Current portion of long-term debt	7,133	7,674
Current portion of financing lease obligations	4,081	3,461
Other current liabilities	175	280
Total current liabilities	76,230	46,660
Asset retirement obligations	23,223	22,060
Long-term debt, net	2,698	3,339
Long-term financing lease obligations, net	5,968	4,599
Senior notes, net	32,478	32,363
Deferred tax liability, net	11,421	6,406
Other long-term liabilities	2,411	2,532
Total liabilities	154,429	117,959
Commitments and contingencies
Stockholders' Equity
Common stock, $0.01 par value, 260,000,000 shares authorized, 44,273,388 at March 31, 2022 and 44,092,981 at December 31, 2021 shares issued and outstanding	443	441
Additional paid-in capital	165,451	163,566
Retained earnings	86,041	47,067
Total stockholders' equity	251,935	211,074
Total Liabilities and Stockholders' Equity	$ 406,364	$ 329,033