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Note 17 - Quarterly Results of Operations (Unaudited) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 3 Months Ended
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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

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