Note 8 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2021 |
|
| Amortization of Intangible Assets, Total | $ 5,739 | $ 6,913 |
| US Concrete Waste Management Services [Member] | ||
| Goodwill, Impairment Loss | $ 0 | |