Note 6 - Property, Plant and Equipment (Details Textual) - USD ($)
$ in Millions
|3 Months Ended|
Jan. 31, 2021
Jan. 31, 2020
|Depreciation, Total||$ 6.9||$ 6.5|
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef