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Note 7 - Unconsolidated Affiliated Company (Details) - Income (Zenith Freight Lines [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		2 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Feb. 02, 2015
Schedule of Equity Method Investments [Line Items]
Earnings recognized			$ 220
Earnings Recognized [Member]
Schedule of Equity Method Investments [Line Items]
Earnings recognized	$ 220	$ 65

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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