Note 19 - Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Apr. 30, 2017	Oct. 31, 2016
Total		$ 88,101	$ 165,083
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Mortgage loans held for sale	[1]	88,307	165,077
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
Derivative Fair Value		100	(80)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Forward Contracts [Member]
Derivative Fair Value		$ (306)	$ 86

[1] The aggregate unpaid principal balance was $82.6 million and $149.4 million at April 30, 2017 and October 31, 2016, respectively.