Note 11 - Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs on Recurring Basis (Details) - Interest Rate Lock Commitments [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Beginning balance	$ 130	$ 91	$ (81)	$ 1,218
Purchases and issuances	(186)	448	(150)	735
Sales and settlements	(1)	(205)	174	(1,619)
Ending balance	(57)	334	(57)	334
Unrealized (losses) gains related to items held at end of period	$ (187)	$ 243	$ 24	$ (884)