Note 17 - Revenue from Contracts with Customers - Summary of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues		$ 10,566	$ 10,508	$ 20,526	$ 21,340
Noninterest income, not in-scope(2)	[1],[2]	12,544	4,110	16,828	13,510
Total noninterest income		23,110	14,618	37,354	34,850
Fees and Services Charges on Deposit Account [Member]
Revenues		2,336	2,349	4,855	4,758
Wealth Management Fees [Member]
Revenues		3,639	3,956	7,536	8,310
Other Service Fees [Member]
Revenues	[1]	$ 4,591	$ 4,203	$ 8,135	$ 8,272

[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.