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Note 19 - 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, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Loans Held for Sale [Member] |  |  |  |
Fair value included in net loss all reflected in financial services revenues | $ 127 | $ 645 | $ 2,541 | $ 3,214
Interest Rate Lock Commitments [Member] |  |  |  |
Fair value included in net loss all reflected in financial services revenues | 178 | 109 | (70) | 99
Forward Contracts [Member] |  |  |  |
Fair value included in net loss all reflected in financial services revenues | $ (143) | $ (422) | $ 125 | $ (305)

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- Definition Amount of realized and unrealized gain (loss) included in earnings, which have arisen from the use of significant unobservable inputs (level 3) to measure fair value of assets, liabilities, and financial instruments classified in shareholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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