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Note 6 (Detail) (USD $)
 3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Oct. 31, 2012
General Liability Insurance, Deductible $ 20,000,000   $ 20,000,000
Bodily Injury Insurance, Deductible 250,000   100,000
Bodily Injury Insurance, Limit 5,000,000   5,000,000
Aggregate Retention for Construction Defects, Warranty and Bodily Injury Claims 21,000,000   21,000,000
Payments by Insurance Companies for Claims 1,000,000 700,000  
Maximum [Member]
      
Per Occurence Threshold to Accrue Warranty Costs to Cost of Sales 5,000    
Minimum [Member]
      
Per Occurence Threshold to Accrue Warranty Costs to SG&A $ 5,000