Consolidated Statement of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Revenue:
Coal sales	$ 64,764		$ 34,985		$ 133,910		$ 103,129
Liability entinguishment (Note 9)							4,300
Other (Note 5)	237		455		717		3,615
Revenue	66,322		37,660		140,549		116,058
Costs and expenses:
Operating costs and expenses	52,588		23,407		101,689		68,959
DD&A	6,979		4,772		17,131		13,982
Coal exploration costs	716		739		1,907		1,725
SG&A	2,511		1,936		7,220		5,586
Interest	1,825		308		2,687		1,131
Write off deferred financing costs	1,021				1,021
Acquisition deal costs (Note 10)	7,891				7,891
Costs and expenses	73,531		31,162		139,546		91,383
Income (loss) before income taxes	(7,209)		6,498		1,003		24,675
Less income taxes:
Current	(157)		(609)		4,244		1,297
Deferred	(1,284)		2,277		(4,067)		4,915
Income taxes	(1,441)		1,668		177		6,212
Net income (loss)	(5,768)	[1]	4,830	[1]	826	[1]	18,463	[1]
Net income per share: (Note 8)
Basic (in Dollars per share)	$ (0.20)		$ 0.17		$ 0.03		$ 0.65
Diluted (in Dollars per share)	$ (0.20)		$ 0.17		$ 0.03		$ 0.64
Weighted average shares outstanding:
Basic (in Shares)	28,772		28,607		28,766		28,580
Diluted (in Shares)	29,310		28,838		29,108		28,851
Savoy [Member]
Revenue:
Equity income (loss)	1,217		2,048		5,731		4,495
Revenue					32,135		29,444
Costs and expenses:
Costs and expenses					19,423		19,471
Less income taxes:
Net income (loss)					12,712		9,973
Sunrise Energy [Member]
Revenue:
Equity income (loss)	104		172		191		519
Revenue					2,328		2,551
Costs and expenses:
Costs and expenses					1,945		1,513
Less income taxes:
Net income (loss)					$ 383		$ 1,038

[1] There is no material difference between net income (loss) and comprehensive income (loss).