CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical)		12 Months Ended
Feb. 09, 2016	Oct. 29, 2017	Oct. 30, 2016	Oct. 25, 2015
Fiscal year term		364 days	371 days	364 days
Common Stock
Authorized stock split ratio	2

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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