Note 17 - Revenue From Contracts With Clients - Summary of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues		$ 11,792	$ 11,033	$ 32,318	$ 32,373
Noninterest income, not in-scope(2)	[1],[2]	(3,955)	(1,157)	12,873	12,353
Total noninterest income		7,837	9,876	45,191	44,726
Fees and Services Charges on Deposit Account [Member]
Revenues		2,218	2,398	7,073	7,156
Wealth Management Fees [Member]
Revenues		5,150	4,184	12,686	12,494
Other Service Fees [Member]
Revenues	[1]	$ 4,424	$ 4,451	$ 12,559	$ 12,723

[1] Other service fees comprise of fees related to letters of credit, wire fees, fees on foreign exchange transactions and other immaterial individual revenue streams.

[2] These amounts primarily represent revenue from contracts with customers that are out of the scope of ASC Topic 606.