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Note 3 - Segment Information (Details) - Segment Information (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Total Revenues: |  |
Total revenue | $ 160,957 | $ 164,731
Operating Income (Loss): |  |
Operating income (loss) | 354 | (715)
Operating Segments [Member] | Truckload [Member] |  |
Total Revenues: |  |
Total revenue | 150,254 | 157,522
Operating Income (Loss): |  |
Operating income (loss) | 451 | 3,171
Operating Segments [Member] | Other Segments [Member] |  |
Total Revenues: |  |
Total revenue | 10,703 | 7,209
Operating Income (Loss): |  |
Operating income (loss) | 541 | (267)
Corporate, Non-Segment [Member] |  |
Operating Income (Loss): |  |
Operating income (loss) | $ (638) | $ (3,619)

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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