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Note 16 - Warranty Costs (Details Textual)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 31, 2017
USD ($)
Oct. 31, 2016
USD ($)
Oct. 31, 2017
USD ($)
Oct. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
Cash Received from Subcontractors for Owner Controlled Insurance Program     $ 4,100 $ 4,200  
General Liability Insurance Deductible $ 20,000 $ 20,000 20,000 20,000 $ 20,000
Bodily Injury Insurance Deductible 250 250 250 250 250
Bodily Injury Insurance Limit 5,000 5,000 5,000 5,000 $ 5,000
Aggregate Retention for Construction Defects Warranty and Bodily Injury Claims 21,000 21,000 21,000 21,000  
Increase (Decrease) In Construction Defect Reserves 12,500 $ (9,200)      
Standard Product Warranty Accrual, Period Increase (Decrease) $ (4,600)        
Payments by Insurance Companies for Claims     $ 900 $ 4,000  
Homebuilding [Member] | Northeast [Member]          
Number of Construction Defect Claims Settled During the Period       2