(1) Summary of Significant Accounting Policies (Details)	12 Months Ended		36 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2016 T
Accounting Policies [Abstract]
EquityInterestinSELLP	45.00%
Equity Interest in SELLC	50.00%
Fair Value Inputs, Discount Rate	5.50%
Tons of Coal Commitment for Three Years (in US Ton)			5,800,000
Sales Accounted For By Three Customers	94.00%	93.00%
Percent Sales To One Customer	39.00%	46.00%
Percent Sales To Second Customer	29.00%	31.00%
Percent Sales To Third Customer	14.00%	16.00%
Percent Sales to Fourth Customer	12.00%