CONSOLIDATED AND CONDENSED STATEMENTS OF OPERATIONS (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Terminalling and storage	$ 18,531	$ 14,210	$ 48,611	$ 40,045
Marine transportation	3,979	6,352	13,282	19,223
Product Sales	1,636	1,628	5,783	7,197
Cost of products sold: (excluding depreciation and amortization)
Natural gas services	6,761	9,257	18,783	13,679
Sulfur services	4,111	4,762	12,512	13,407
Expenses:
Operating expenses	14,100	16,905	42,308	42,170
Selling, general and administrative	$ 2,764	$ 2,373	$ 8,258	$ 6,344