Stock-Based Compensation And Stock Ownership Plans (Stock Option Activity) (Details) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Sep. 28, 2012	Sep. 30, 2011	Oct. 01, 2010
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding and exercisable, Beginning balance, Shares	68,590	113,704	180,288
Exercised, Shares	(43,390)	(40,780)	(55,250)
Cancelled, Shares	(1,834)	(4,334)	(11,334)
Outstanding and exercisable, Ending balance, Shares	23,366	68,590	113,704
Outstanding and exercisable, Beginning balance, Weighted Average Exercise Price	$ 10.37	$ 8.57	$ 8.23
Exercised, Weighted Average Exercise Price	$ 7.79	$ 5.79	$ 7.29
Cancelled, Weighted Average Exercise Price	$ 7.42	$ 6.28	$ 9.39
Outstanding and exercisable, Ending balance, Weighted Average Exercise Price	$ 15.39	$ 10.37	$ 8.57
Options outstanding and exercisable at September 28, 2012, Aggregate Intrinsic Value	$ 139
Options outstanding and exercisable at September 28, 2012, Weighted Average Remaining Contractual Term (Years)	1 year 7 months 6 days
Exercised, Aggregate Intrinsic Value	351
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 7 months 6 days
Cancelled, Aggregate Intrinsic Value	$ 26

Aggregate intrinsic value of stock options cancelled during the period.

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Number of share options (or share units) exercised during the current period.

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