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Note 11 (Detail) - Summary of Securities (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Sep. 29, 2012
Amortized Cost - Held To Maturity	$ 25,974	$ 26,212
Gross Unrealized Gains - Held To Maturity	75	126
Gross Unrealized Losses - Held To Maturity	11
Fair Market Value - Held To Maturity	26,038	26,338
Amortized Cost - Available For Sale	80,000
Gross Unrealized Gains - Available For Sale	159
Gross Unrealized Losses - Available For Sale	130
Fair Market Value - Available For Sale	80,029
US Government Corporations and Agencies Securities [Member]
Amortized Cost - Held To Maturity	24,998	24,998
Gross Unrealized Gains - Held To Maturity	74	126
Gross Unrealized Losses - Held To Maturity	11
Fair Market Value - Held To Maturity	25,061	25,124
Certificates of Deposit [Member]
Amortized Cost - Held To Maturity	976	1,214
Gross Unrealized Gains - Held To Maturity	1
Fair Market Value - Held To Maturity	977	1,214
Mutual Funds [Member]
Amortized Cost - Available For Sale	80,000
Gross Unrealized Gains - Available For Sale	159
Gross Unrealized Losses - Available For Sale	130
Fair Market Value - Available For Sale	$ 80,029

X

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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X

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

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Amount of investments in debt securities categorized as held-to-maturity valued at amortized cost, excludes other than temporary impairment (OTTI).

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No definition available.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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