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Note 21 (Detail) - Changes in Fair Values Included in Income (Loss) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Jul. 31, 2012 | Jul. 31, 2011 | Jul. 31, 2012 | Jul. 31, 2011
Mortgage Loans Held for Sale [Member] |  |  |  |
Changes in fair value included in net income (loss), all reflected in financial services revenues | $ 863 | $ 11 | $ 417 | $ (369)
Interest Rate Lock Commitments [Member] |  |  |  |
Changes in fair value included in net income (loss), all reflected in financial services revenues | 193 | (72) | 184 | 235
Forward Contracts [Member] |  |  |  |
Changes in fair value included in net income (loss), all reflected in financial services revenues | $ (257) | $ 186 | $ 225 | $ (573)

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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
Name: | us-gaap_FairValueOptionChangesInFairValueGainLoss1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration