Note 5 - Unconsolidated Affiliated Companies (Tables) (Zenith Freight Lines [Member])

6 Months Ended

May 31, 2014

Zenith Freight Lines [Member]

Note 5 - Unconsolidated Affiliated Companies (Tables) [Line Items]

Equity Method Investments [Table Text Block]

	Quarter Ended				Six Months Ended
	May 31, 2014		June 1, 2013		May 31, 2014		June 1, 2013
Earnings recognized	$	278	$	168	$	343	$	282