Note 6 - Goodwill and Intangible Assets - Goodwill by Reportable Segment (Details) $ in Thousands  | 
3 Months Ended | 
|---|---|
| 
 Jan. 31, 2024  
USD ($) 
 | |
| Balance | $ 221,517 | 
| Balance | 222,744 | 
| Operating Segments [Member] | |
| Balance | 221,517 | 
| Foreign currency translation | 1,227 | 
| Balance | 222,744 | 
| Operating Segments [Member] | US Concrete Pumping [Member] | |
| Balance | 147,482 | 
| Balance | 147,482 | 
| Operating Segments [Member] | UK Operations [Member] | |
| Balance | 24,902 | 
| Foreign currency translation | 1,227 | 
| Balance | 26,129 | 
| Operating Segments [Member] | US Concrete Waste Management Services [Member] | |
| Balance | 49,133 | 
| Balance | $ 49,133 | 
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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