Note 6 - Property, Plant and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands  | 
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2023  | 
Jul. 31, 2022  | 
Jul. 31, 2023  | 
Jul. 31, 2022  | 
|
| Depreciation Expense | $ 10,018 | $ 8,704 | $ 29,541 | $ 25,547 | 
| Cost of Sales [Member] | Property and Equipment [Member] | ||||
| Depreciation Expense | 9,396 | 8,164 | 27,718 | 23,839 | 
| General and Administrative Expense [Member] | Property and Equipment [Member] | ||||
| Depreciation Expense | $ 622 | $ 540 | $ 1,823 | $ 1,708 | 
| X | ||||||||||
- Definition 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 
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