Note 10 - Mortgage Loans Held for Sale - Loan Origination Reserves (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Loan origination reserves, beginning of period	$ 1,714	$ 1,524	$ 1,632	$ 1,458
Provisions for losses during the period	43	58	133	167
Adjustments to pre-existing provisions for losses from changes in estimates	0	0	(8)	(43)
Loan origination reserves, end of period	$ 1,757	$ 1,582	$ 1,757	$ 1,582