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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.