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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2011	Oct. 01, 2010
Accounts receivable, allowance for doubtful accounts	$ 3,076	$ 2,988
Treasury stock, shares	0	172
Class A [Member]
Common stock, shares issued	8,567,549	8,363,313
Common stock, shares outstanding	8,567,549	8,363,313
Class B [Member]
Common stock, shares issued	1,215,842	1,216,464
Common stock, shares outstanding	1,215,842	1,216,464

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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