(6) Other Long-Term Assets and Other Income (Details) - Other Long-Term Assets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		May 31, 2013	Dec. 31, 2012
Long-term assets:
Advance coal royalties	$ 3,737			$ 3,324
Deferred financing costs, net	1,344			1,494
Marketable equity securities available for sale, at fair value (restricted)*	4,962	[1]		3,548
Ohio River Terminal (see Note 8)	2,823		2,800
Miscellaneous	3,621			2,941
	$ 16,487			$ 11,307

[1] Held by Sunrise Indemnity, Inc. our wholly owned captive insurance company.