Note 17 - Quarterly Results of Operations (Unaudited) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	3 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Terminal Property [Member]
Note 17 - Quarterly Results of Operations (Unaudited) (Details) [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment	$ (81)	$ (198)	$ (562)	$ 2,400

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration