Stock-Based Compensation And Stock Ownership Plans (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Oct. 02, 2015	Oct. 03, 2014	Sep. 27, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Tendered for Tax Withholding on Vesting of Restricted Shares	30,353	24,719
Employee Stock Purchase Plan Expense	$ 33	$ 57	$ 41
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date	85.00%
Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Available for Grant Under Stock-Based Compensation Plans	685,138
Employee Stock Purchase Plan Shares Issued	8,062	15,969	9,562
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Stock Options Granted During Period	0	0	0
Cash Received from Stock Option Exercises	$ 118	$ 78	$ 86
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	P10Y
Tax Benefit on Stock Based Compensation Expense	$ 482	493	572
Aggregated Intrinsic Value Of Shares Received Option Excercise	$ 221	$ 96	171
Non-vested Stock, Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Non-vested Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Stock Option Equity Grants	38,222	47,934
Non-Vested Stock Grants, Weighted Average Grant Price	$ 30.05	$ 27.70
Stock-Based Compensation Expense Related to Non-Vested Stock, Net of Forfeitures	$ 1,287	$ 1,523	1,400
Unrecognized Stock-Based Compensation Expense Related to Non-vested Stock	1,431
Fair Value Of Vested Restricted Stock	3,294	3,123	3,607
Tax Benefit on Stock Based Compensation Expense	$ 598	$ 641	$ 532
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Stock Option Equity Grants	7,336	10,792	6,600
Non-Vested Stock Grants, Weighted Average Grant Price	$ 33.40	$ 22.71	$ 22.73
Stock-Based Compensation Expense Related to Non-Vested Stock, Net of Forfeitures	$ 286	$ 165	$ 88
Unrecognized Stock-Based Compensation Expense Related to Non-vested Stock	$ 102

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Aggregated Intrinsic Value Of Shares Received Option Excercise

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Publisher FASB
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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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The amount of plan compensation cost recognized during the period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Discount rate from fair value on purchase date that participants pay for shares.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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