Note 5 - Segment Reporting (Detail) - Assets by Reporting Segments (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Segment Reporting Information Total Assets	$ 340,005	$ 336,191
Trucking [Member]
Segment Reporting Information Total Assets	229,784	231,776
Corporate and Other [Member]
Segment Reporting Information Total Assets	$ 110,221	$ 104,415