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Note 21 - Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Oct. 31, 2019 | Oct. 31, 2018
--- | --- | ---
Total |  | $ 165,985 | $ 130,694
Fair Value, Inputs, Level 2 [Member] |  |  |
Mortgage loans held for sale | [1] | 166,007 | 130,709
Total |  | 165,943 | 130,722
Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member] |  |  |
Derivative Fair Value |  | (64) | 13
Fair Value, Inputs, Level 3 [Member] | Interest Rate Lock Commitments [Member] |  |  |
Derivative Fair Value |  | $ 42 | $ (28)
[1] | The aggregate unpaid principal balance was $161.1 million and $127.6 million at October 31, 2019 and 2018, respectively.

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- Definition The carrying amount of the outstanding balance due under the mortgage loans classified as held for sale. + References No definition available. + Details
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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
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- Definition Fair value portion of mortgage loans held-for-sale. + References No definition available. + Details
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