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Note 14 - Financial Instruments and Fair Value Measurements (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 25, 2012	Aug. 27, 2011	Aug. 25, 2012	Aug. 27, 2011
Marketable Securities, Realized Gain (Loss), Excluding Other than Temporary Impairments	$ 21	$ 33	$ 116	$ 137
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net			806
Gain (Loss) on Investments [Member]
Gain Loss Previously Included in Other Comprehensive Income			33	28
Fixed Income Investments [Member]
Marketable Securities	$ 1,684		$ 1,684

Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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- Definition

The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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