Note 23 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Mortgage banking income	[1]	$ 1,112	$ 814	$ 3,077	$ 2,882
Bank owned life insurance	[1]	634	569	1,817	1,677
Loss on sale of premises and equipment (1)	[1]	(59)	302	(39)	75
Other (2)	[2]	928	613	2,084	2,933
Non-interest income		24,797	22,896	71,723	67,803
Fiduciary and Trust [Member]
Non-interest income		10,931	10,030	32,497	29,703
Deposit Account [Member]
Non-interest income		2,314	2,272	6,630	6,622
Credit and Debit Card [Member]
Non-interest income		5,083	4,870	14,688	14,064
Treasury Management [Member]
Non-interest income		2,939	2,635	8,389	7,502
Product Sales Commissions and Fees [Member]
Non-interest income		915	791	2,580	2,345
Commercial Banking [Member]
Mortgage banking income	[1]	1,112	814	3,077	2,882
Bank owned life insurance	[1]	634	569	1,817	1,677
Loss on sale of premises and equipment (1)	[1]	(59)	302	(39)	75
Other (2)	[2]	928	613	2,084	2,933
Non-interest income		13,866	12,866	39,226	38,100
Commercial Banking [Member] | Fiduciary and Trust [Member]
Non-interest income		0	0	0	0
Commercial Banking [Member] | Deposit Account [Member]
Non-interest income		2,314	2,272	6,630	6,622
Commercial Banking [Member] | Credit and Debit Card [Member]
Non-interest income		5,083	4,870	14,688	14,064
Commercial Banking [Member] | Treasury Management [Member]
Non-interest income		2,939	2,635	8,389	7,502
Commercial Banking [Member] | Product Sales Commissions and Fees [Member]
Non-interest income		915	791	2,580	2,345
WM&T [Member]
Mortgage banking income	[1]	0	0	0	0
Bank owned life insurance	[1]	0	0	0	0
Loss on sale of premises and equipment (1)	[1]	0	0	0	0
Other (2)	[2]	0	0	0	0
Non-interest income		10,931	10,030	32,497	29,703
WM&T [Member] | Fiduciary and Trust [Member]
Non-interest income		10,931	10,030	32,497	29,703
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] (1) Outside of the scope of ASC 606.

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