Note 9 - Mortgage Loans Held for Sale - Loan Origination Reserves (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Loan origination reserves, beginning of period	$ 1,269	$ 3,271	$ 2,563	$ 3,158
Provisions for losses during the period	61	39	139	107
Adjustments to pre-existing provisions for losses from changes in estimates			(22)	45
Payments/settlements			(1,350)
Loan origination reserves, end of period	$ 1,330	$ 3,310	$ 1,330	$ 3,310