Note 23 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Mortgage banking income	[1]	$ 1,094	$ 1,017	$ 2,011	$ 1,965
Bank owned life insurance	[1]	629	595	1,251	1,183
Gain on sale of premises and equipment	[1]	74	20	74	20
Other (2)	[2]	1,177	500	1,717	1,156
Non-interest income		24,348	23,655	47,344	46,926
Fiduciary and Trust [Member]
Non-interest income		10,483	10,795	21,130	21,566
Deposit Account [Member]
Non-interest income		2,069	2,180	4,148	4,316
Credit and Debit Card [Member]
Non-interest income		4,837	4,923	9,345	9,605
Treasury Management [Member]
Non-interest income		3,005	2,825	5,678	5,450
Product Sales Commissions and Fees [Member]
Non-interest income		980	800	1,990	1,665
Commercial Banking [Member]
Mortgage banking income	[1]	1,094	1,017	2,011	1,965
Bank owned life insurance	[1]	629	595	1,251	1,183
Gain on sale of premises and equipment	[1]	74	20	74	20
Other (2)	[2]	1,177	500	1,717	1,156
Non-interest income		13,865	12,860	26,214	25,360
Commercial Banking [Member] | Fiduciary and Trust [Member]
Non-interest income		0	0	0	0
Commercial Banking [Member] | Deposit Account [Member]
Non-interest income		2,069	2,180	4,148	4,316
Commercial Banking [Member] | Credit and Debit Card [Member]
Non-interest income		4,837	4,923	9,345	9,605
Commercial Banking [Member] | Treasury Management [Member]
Non-interest income		3,005	2,825	5,678	5,450
Commercial Banking [Member] | Product Sales Commissions and Fees [Member]
Non-interest income		980	800	1,990	1,665
WM&T [Member]
Mortgage banking income	[1]	0	0	0	0
Bank owned life insurance	[1]	0	0	0	0
Gain on sale of premises and equipment	[1]	0	0	0	0
Other (2)	[2]	0	0	0	0
Non-interest income		10,483	10,795	21,130	21,566
WM&T [Member] | Fiduciary and Trust [Member]
Non-interest income		10,483	10,795	21,130	21,566
WM&T [Member] | Deposit Account [Member]
Non-interest income		0	0	0	0
WM&T [Member] | Credit and Debit Card [Member]
Non-interest income		0	0	0	0
WM&T [Member] | Treasury Management [Member]
Non-interest income		0	0	0	0
WM&T [Member] | Product Sales Commissions and Fees [Member]
Non-interest income		$ 0	$ 0	$ 0	$ 0

[1] Outside of the scope of ASC 606.

[2] Outside of the scope of ASC 606, with the exception of safe deposit fees which were nominal for all periods