Note 9 - Mortgage Loans Held for Sale - Loan Origination Reserves (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
Loan origination reserves, beginning of period	$ 3,158	$ 8,137
Provisions for losses during the period	30	34
Adjustments to pre-existing provisions for losses from changes in estimates	0	(3,094)
Loan origination reserves, end of period	$ 3,188	$ 5,077