Consolidated Statement of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Revenue:
Coal sales	$ 36,152		$ 34,174		$ 98,259		$ 100,275
Gain on sale of unproved oil and gas properties			9,084				9,084
Equity income - Savoy	501		948		2,999		4,071
Equity income - Sunrise Energy	17		230		49		774
Other	444		192		4,938		1,949
	37,114		44,628		106,245		116,153
Costs and expenses:
Operating costs and expenses	20,745		19,355		57,994		55,965
DD&A	4,145		3,392		11,895		10,128
Coal exploration costs	778		373		1,900		645
SG&A	1,947		1,695		5,607		5,096
Interest	229		297		757		1,003
	27,844		25,112		78,153		72,837
Income before income taxes	9,270		19,516		28,092		43,316
Less income taxes:
Current	1,731		2,416		5,607		5,563
Deferred	1,349		4,544		3,684		10,464
	3,080		6,960		9,291		16,027
Net income*	$ 6,190	[1]	$ 12,556	[1]	$ 18,801	[1]	$ 27,289	[1]
Net income per share:
Basic (in Dollars per share)	$ 0.22		$ 0.45		$ 0.66		$ 0.97
Diluted (in Dollars per share)	$ 0.22		$ 0.44		$ 0.65		$ 0.95
Weighted average shares outstanding:
Basic (in Shares)	28,324		28,162		28,316		28,114
Diluted (in Shares)	28,760		28,590		28,791		28,678

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