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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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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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- Definition

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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No definition available.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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Stock Option And Benefit Plans (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands					1 Months Ended		12 Months Ended
	Jul. 28, 2017	Oct. 28, 2016	Jul. 26, 2016	Jul. 29, 2015	Oct. 31, 2015	Oct. 31, 2014	Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense							$ 700	$ 800	$ 700
Intrinsic value for options exercised							385	165	1,877
Unrecognized share based compensation expense							$ 800
Share Based Expense Recognition - Weighted-average period							1 year 6 months 15 days
Company contributions to 401K							$ 600	$ 600	$ 600
Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of SARs Granted		10,000	242,500		213,166		248,166
Strike Price		$ 8.04	$ 8.18	$ 10.26		$ 8.22
Grant date fair value		$ 2.30	$ 2.42	$ 3.65		$ 3.04
October 28, 2016 SAR Grant [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs							10,000
July 29, 2015 SAR Grant. [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs							233,333
July 26, 2016 SAR Grant [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs							242,500
October 31, 2014 SAR Grant [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs							205,833
Subsequent Event \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of SARs Granted	272,500
Strike Price	$ 7.26
Grant date fair value	$ 1.89