Acquisitions Pro Forma Infromation (Details) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2013 Big Sandy Terminal [Member]	Sep. 30, 2013 Big Sandy Terminal [Member]	Sep. 30, 2013 Nettleton Pipeline [Member]	Sep. 30, 2013 Nettleton Pipeline [Member]	Sep. 30, 2012 Nettleton and Big Sandy [Member]	Sep. 30, 2012 Nettleton and Big Sandy [Member]	Sep. 30, 2013 Hopewell [Member]	Sep. 30, 2013 Tyler Terminal and Tanks [Member]	Sep. 30, 2013 Tyler Terminal and Tanks [Member]
Business Acquisition [Line Items]
Net Sales of Acquiree since Acquisition Date	$ 400,000	$ 1,100,000	$ 1,200,000	$ 4,400,000			$ 200,000	$ 3,300,000	$ 3,300,000
Net income (loss) of Acquiree since Acquisition Date	300,000	900,000	800,000	3,000,000				2,100,000	2,100,000
Net Sales					271,935,000	773,498,000
Net income					$ (421,000)	$ 1,420,000