Note 7 - Unconsolidated Affiliated Company (Details Textual) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended		9 Months Ended
	Feb. 02, 2015	Aug. 29, 2015	Aug. 30, 2014	Aug. 29, 2015	Aug. 30, 2014	Feb. 01, 2015	Nov. 29, 2014
Zenith Freight Lines [Member]
Equity Method Investment, Ownership Percentage						49.00%
Equity Method Investments	$ 9,480						$ 7,915
Income (Loss) from Equity Method Investments	220
Investments in and Advances to Affiliates, at Fair Value, Gross Additions	1,345
Capital Contributions Made to Unconsolidated Affiliated Companies	$ 2,745
Due to Affiliate							$ 2,628
Income (Loss) from Equity Method Investments			$ 190	$ 220	$ 534