Stock-Based Compensation And Stock Ownership Plans (Stock Option Activity) (Details) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
Jun. 29, 2012	Sep. 30, 2011
Stock Options [Member]
Number of Stock Options Outstanding and Exercisable, Beginning Balance	68,590
Number of Stock Options Exercised	(43,390)
Number of Stock Options Cancelled	(1,834)
Number of Stock Options Outstanding and Exercisable, Ending Balance	23,366	68,590
Weighted Average Exercise Price for Stock Options Outstanding and Exercisable, Beginning Balance	$ 10.37
Weighted Average Exercise Price for Stock Options Exercised	$ 7.79
Weighted Average Exercise Price for Stock Options Cancelled	$ 7.42
Weighted Average Exercise Price for Stock Options Outstanding and Exercisable, Ending Balance	$ 15.39	$ 10.37
Weighted Average Remaining Contractual Term (Years), Beginning	1 year 10 months 24 days	1 year 1 month 6 days
Weighted Average Remaining Contractual Term (Years), Ending	1 year 10 months 24 days	1 year 1 month 6 days
Aggregate Intrinsic Value, Beginning Balance	$ 397
Aggregate Intrinsic Value, Exercises	351
Aggregate Intrinsic Value, Cancelled	23
Aggregate Intrinsic Value, Ending Balance	$ 107	$ 397

Aggregate intrinsic value of stock options cancelled during the period.

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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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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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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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- Definition

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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