Schedule II (Consolidated Valuation And Qualifying Accounts) (Detail) - USD ($) $ in Thousands	12 Months Ended
Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015
Provision for obsolete inventory
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 1,113	$ 417	$ 332
Provisions	496	757	520
Dispositions	(303)	(61)	(435)
Balance at end of year	1,306	1,113	417
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	135	97	0
Provisions	(10)	38	97
Dispositions	(41)	0	0
Balance at end of year	$ 84	$ 135	$ 97

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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