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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

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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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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
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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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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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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. 26, 2016	Jul. 29, 2015	Jul. 31, 2013	Oct. 31, 2015	Oct. 31, 2014	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense						$ 800	$ 700	$ 700
Intrinsic value for options exercised						165	1,900	400
Unrecognized share based compensation expense						$ 900
Share Based Expense Recognition - Weighted-average period						1 year 9 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			213,166	213,166		248,166
Strike Price		$ 10.26	$ 11.34		$ 8.22
Grant date fair value		$ 3.65	$ 4.67		$ 3.04
July 29, 2015 SAR Grant. [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs						240,833
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
July 31, 2013 SAR Grant [Member] \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding SARs						200,833
Subsequent Event \| Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of SARs Granted	242,500
Strike Price	$ 8.18
Grant date fair value	$ 2.42