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Note 6 - Warranty Costs (Details) - Warranty and General Liability Reserve (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Product Warranty Liability [Line Items]
Balance	$ 181,833us-gaap_ProductWarrantyAccrual	$ 133,077us-gaap_ProductWarrantyAccrual	$ 178,008us-gaap_ProductWarrantyAccrual	$ 131,028us-gaap_ProductWarrantyAccrual
Charges incurred during the period	(30,492)us-gaap_ProductWarrantyAccrualPayments	(4,804)us-gaap_ProductWarrantyAccrualPayments	(35,097)us-gaap_ProductWarrantyAccrualPayments	(9,342)us-gaap_ProductWarrantyAccrualPayments
Balance	161,307us-gaap_ProductWarrantyAccrual	134,865us-gaap_ProductWarrantyAccrual	161,307us-gaap_ProductWarrantyAccrual	134,865us-gaap_ProductWarrantyAccrual
Selling, General and Administrative Expenses [Member]
Product Warranty Liability [Line Items]
Additions	4,331us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember	4,510us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember	9,580us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember	9,051us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember
Cost of Sales [Member]
Product Warranty Liability [Line Items]
Additions	$ 5,635us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember	$ 2,082us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember	$ 8,816us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember	$ 4,128us-gaap_ProductWarrantyAccrualWarrantiesIssued / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember

X

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(5))

-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

+ Details

Name:	us-gaap_ProductWarrantyAccrual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(2))

-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

+ Details

Name:	us-gaap_ProductWarrantyAccrualPayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(3))

-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

+ Details

Name:	us-gaap_ProductWarrantyAccrualWarrantiesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_ProductWarrantyLiabilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: