Note 15 - Stock-based Compensation (Tables)
|3 Months Ended|
Jan. 31, 2020
|Share-based Payment Arrangement, Activity [Table Text Block]||
Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef