Note 5 - Unconsolidated Affiliated Companies (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2014	Nov. 30, 2013
Note 5 - Unconsolidated Affiliated Companies (Details) [Line Items]
Equity Method Investments	$ 7,597	$ 7,254
Due to Affiliate	1,934	2,580
Zenith Freight Lines [Member]
Note 5 - Unconsolidated Affiliated Companies (Details) [Line Items]
Equity Method Investment, Ownership Percentage	49.00%
Other Current Assets [Member]
Note 5 - Unconsolidated Affiliated Companies (Details) [Line Items]
Indemnification Escrow Receivable		$ 2,348

Amount withheld from IHFC sales proceeds for general contingencies.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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