Note 9 - Borrowed Funds - Schedule of Short-term Debt (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Short-term borrowings	$ 273,148		$ 140,146	[1]
Federal Home Loan Bank Advances [Member]
Short-term borrowings	273,000	$ 140,000	140,000
Average balance outstanding for the period	179,667	140,000	140,000
Maximum balance outstanding at any month end during period	$ 291,300	$ 140,000	$ 140,000
Weighted average interest rate for the period	1.48%	0.34%	0.33%
Weighted average interest rate for balances outstanding at September 30	3.06%	0.32%	0.26%

[1] Derived from audited consolidated financial statements