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		Apr. 30, 2021	Oct. 31, 2020
Total		$ 126,589	$ 104,361
Fair Value, Inputs, Level 2 [Member]
Mortgage loans held for sale	[1]	126,553	104,378
Total		126,150	104,350
Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member]
Derivative Fair Value		(403)	(28)
Fair Value, Inputs, Level 3 [Member] | Interest Rate Lock Commitments [Member]
Derivative Fair Value		$ 439	$ 11

[1] The aggregate unpaid principal balance was $122.3 million and $100.4 million at April 30, 2021 and October 31, 2020, respectively.