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Note 6 - Warranty Costs (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2023
Jul. 31, 2022
General Liability Insurance Deductible $ 25,000 $ 25,000 $ 25,000 $ 25,000
Aggregate Retention for Construction Defects Warranty and Bodily Injury Claims 25,000 25,000 25,000 25,000
Payments by Insurance Companies for Claims     100 100
CALIFORNIA        
Bodily Injury Insurance Deductible 500 500 500 500
Bodily Injury Insurance Limit 5,000 5,000 5,000 5,000
All States Other Than California [Member]        
Bodily Injury Insurance Deductible 250 250 250 250
Bodily Injury Insurance Limit 5,000 5,000 5,000 5,000
Owner-Controlled Insurance Program for Subcontractors [Member]        
Proceeds from Insurance Premiums Collected $ 1,000 $ 2,400 $ 3,000 $ 5,600