Note 20 - Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands		Jan. 31, 2020	Oct. 31, 2019
Total		$ 89,265	$ 165,985
Fair Value, Inputs, Level 2 [Member]
Mortgage loans held for sale	[1]	89,330	166,007
Total		89,147	165,943
Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member]
Derivative Fair Value		(183)	(64)
Fair Value, Inputs, Level 3 [Member] | Interest Rate Lock Commitments [Member]
Derivative Fair Value		$ 118	$ 42

[1] The aggregate unpaid principal balance was $86.5 million and $161.1 million at January 31, 2020 and October 31, 2019, respectively.