Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
SALES AND OPERATING REVENUES:
Coal sales		$ 83,562	$ 79,036	$ 204,733	$ 179,515
Other revenues		1,522	786	5,187	2,640
Total revenue		85,084	79,822	209,920	182,155
EXPENSES:
Operating expenses		64,557	67,792	170,552	144,257
Depreciation, depletion and amortization		11,187	9,842	31,882	29,864
Asset retirement obligations accretion		255	380	751	1,116
Exploration costs		121	96	393	313
General and administrative		3,569	3,067	10,440	9,271
Total operating expenses		79,689	81,177	214,018	184,821
INCOME (LOSS) FROM OPERATIONS		5,395	(1,355)	(4,098)	(2,666)
Interest expense (1)	[1]	(3,355)	(2,108)	(7,476)	(6,188)
Gain on extinguishment of debt		0	10,000	0	10,000
Equity method investment income		168	90	506	153
NET INCOME (LOSS) BEFORE INCOME TAXES		2,208	6,627	(11,068)	1,299
Current		0	0	0	0
Deferred		596	(1,359)	840	(2,691)
Total income tax expense (benefit)		596	(1,359)	840	(2,691)
NET INCOME (LOSS)		$ 1,612	$ 7,986	$ (11,908)	$ 3,990
NET INCOME (LOSS) PER SHARE:
Basic and diluted (in dollars per share)		$ 0.05	$ 0.26	$ (0.38)	$ 0.13
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)		32,983	30,613	31,727	30,612
Diluted (in shares)		33,268	30,613	31,727	30,612
(1) Interest Expense:
Interest on bank debt		$ 2,133	$ 2,167	$ 5,555	$ 6,610
Other interest		227	0	285	0
Amortization and swap-related interest:
Payments on interest rate swap, net of changes in value		0	(716)	(867)	(2,330)
Amortization of debt issuance costs		995	657	2,503	1,908
Total amortization and swap related interest		995	(59)	1,636	(422)
Total interest expense	[1]	$ 3,355	$ 2,108	$ 7,476	$ 6,188

[1] Interest Expense: