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Marketable Securities - Available-for-sale by Maturity Date (Details) (USD $) In Thousands, unless otherwise specified	Oct. 27, 2012
Schedule of Available-for-sale Securities
Less than 12 months	$ 10,391
Greater than 12 months	15,578
Total	25,969
Certificates of deposit
Schedule of Available-for-sale Securities
Less than 12 months	4,691
Greater than 12 months	2,714
Total	7,405
U.S. Government securities
Schedule of Available-for-sale Securities
Less than 12 months	3,004
Greater than 12 months	3,024
Total	6,028
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Less than 12 months	0
Greater than 12 months	4,702
Total	4,702
Municipal obligations
Schedule of Available-for-sale Securities
Less than 12 months	2,696
Greater than 12 months	5,138
Total	$ 7,834

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- Definition

Available-for-sale Securities, Debt Maturities, After One Year, Fair Value

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- Definition

Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year.

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Amount of debt securities categorized neither as held-to-maturity nor trading.

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