INTERIM FINANCIAL STATEMENTS (Details)	6 Months Ended
Apr. 30, 2017
Quarterly Financial Data [Abstract]
Fiscal year	52 or 53-week fiscal year

Entity's operating cycle if it is other than 12 months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473108&loc=d3e54406-107959

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