|3 Months Ended|
Jan. 31, 2020
|Disclosure Text Block [Abstract]|
|Schedule Of Balance Sheet Information Related To Leases [Table Text Block]||
|Lessee, Operating Lease, Liability, Maturity [Table Text Block]||
Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef