Note 19 - Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Jul. 31, 2018	Oct. 31, 2017
Total		$ 82,454	$ 132,425
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Mortgage loans held for sale	[1]	82,388	132,424
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
Derivative Fair Value		(17)	(14)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Forward Contracts [Member]
Derivative Fair Value		$ 83	$ 15

[1] The aggregate unpaid principal balance was $80.3 million and $128.4 million at July 31, 2018 and October 31, 2017, respectively.