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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 | 6 Months Ended
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Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2022 | Apr. 30, 2021
Loans Held for Sale [Member] |  |  |  |
Changes in fair value included in net income all reflected in financial services revenues | $ (416) | $ (636) | $ 1,566 | $ 4,257
Interest Rate Lock Commitments [Member] |  |  |  |
Changes in fair value included in net income all reflected in financial services revenues | 359 | 385 | (286) | 439
Forward Contracts [Member] |  |  |  |
Changes in fair value included in net income all reflected in financial services revenues | $ 359 | $ (252) | $ 494 | $ (403)

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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 https://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612 + Details
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