BASIS OF PRESENTATION and ACCOUNTING POLICIES Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Apr. 28, 2018	Apr. 28, 2018
Cost of Sales [Member]
Revenue from External Customer [Line Items]
Prior Period Reclassification Adjustment	$ 123	$ 463
Operating Expense [Member]
Revenue from External Customer [Line Items]
Prior Period Reclassification Adjustment	$ 952	$ 3,044

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.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration