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Note 6 - Warranty Costs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Product Warranties Disclosures [Abstract]
Cash Received From Subcontractors For Owner Controlled Insurance Program			$ 1.0	$ 1.0
General Liability Insurance, Deductible	20	20	20	20
Bodily Injury Insurance, Deductible	0.25	0.25	0.25	0.25
Bodily Injury Insurance, Limit	5	5	5	5
Aggregate Retention for Construction Defects, Warranty and Bodily Injury Claims	21	21	21	21
Payments by Insurance Companies for Claims	$ 1.3	$ 7.5	$ 4.2	$ 8.5