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Note 20 - Fair Value of Financial Instruments - Changes in Fair Values Included in Income (Loss) (Details) - Financial Services Revenue Line Item [Member] - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2021 | Jul. 31, 2020
Loans Held for Sale [Member] |  |  |  |
Fair value included in net income (loss) all reflected in financial services revenues | $ 227 | $ 1,485 | $ 4,484 | $ 3,638
Interest Rate Lock Commitments [Member] |  |  |  |
Fair value included in net income (loss) all reflected in financial services revenues | 192 | (29) | 631 | 313
Forward Contracts [Member] |  |  |  |
Fair value included in net income (loss) all reflected in financial services revenues | $ 29 | $ 87 | $ (374) | $ (367)

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612 + Details
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