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Note 16 - Warranty Costs (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Cash Received from Subcontractors for Owner Controlled Insurance Program     $ 5,500 $ 4,400
General Liability Insurance Deductible $ 20,000 $ 20,000 20,000 20,000
Bodily Injury Insurance Deductible 250 250 250 250
Bodily Injury Insurance Limit 5,000 5,000 5,000 5,000
Aggregate Retention for Construction Defects Warranty and Bodily Injury Claims 20,000 20,000 20,000 20,000
Increase (Decrease) In Construction Defect Reserves $ 1,600 $ 2,500    
Payments by Insurance Companies for Claims     $ 100 $ 100