Consolidated Statement of Operations - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Coal sales		$ 278,924	$ 339,490	$ 233,902
Equity income		(1,436)	(1,606)	5,520
Other (Note 8)		3,962	2,236	1,749
Revenue		281,450	340,120	241,171
Costs and expenses:
Operating costs and expenses		192,777	237,897	169,691
DD&A		35,565	43,942	29,262
Coal exploration costs		1,673	2,039	2,362
SG&A		10,520	12,617	12,039
Interest	[1]	15,871	16,055	9,059
Acquisition deal costs (Note 2)				8,057
Asset impairment (Note 3)		16,560
Total costs and expenses		272,966	312,550	230,470
Income before income taxes		8,484	27,570	10,701
Less income tax(benefits) expense:
Current		(167)	(14)	2,205
Deferred		(3,859)	7,452	(1,723)
Total income tax (benefits) expense		(4,026)	7,438	482
Net income	[2]	$ 12,510	$ 20,132	$ 10,219
Net income per share: (Note 10)
Basic and diluted (in Dollars per share)		$ 0.42	$ 0.68	$ 0.34
Weighted average shares outstanding:
Basic and diluted (in Shares)		29,260	29,031	28,776
Deferred financing costs				$ 1,000
Interest expense on net change in estimated fair value of interest rate swaps		$ (637)	$ 159	658
Savoy [Member]
Revenue:
Equity income		(1,187)	(1,532)	5,272
Costs and expenses:
Asset impairment (Note 3)		2,000	2,600
Sunrise Energy [Member]
Revenue:
Equity income		$ (249)	$ (74)	$ 248

[1] Included in interest expense is the change in the estimated fair value of our interest rate swaps. Such amounts were $(637), $159 and $658 for 2016, 2015 and 2014, respectively. 2014 also includes $1 million for expensing deferred financing costs relating to our old credit agreement.

[2] *There is no material difference between net income and comprehensive income.