Schedule II (Consolidated Valuation And Qualifying Accounts) (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Provision for obsolete inventory
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 1,306	$ 1,113	$ 417
Provisions	31	496	757
Dispositions	121	(303)	(61)
Balance at end of year	1,458	1,306	1,113
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	84	135	97
Provisions	(84)	(10)	38
Dispositions	0	(41)	0
Balance at end of year	$ 0	$ 84	$ 135

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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