Note 13 - Segment and Related Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	[1]
Interest income	$ 28,302	$ 21,407
Interest expense	5,078	954
Noninterest income	4,372	5,600
Noninterest expense	15,648	15,349
Income before income taxes	11,619	11,462
Net income	9,157	8,999
Depreciation and amortization	877	877
Total assets	3,075,655	3,346,238	$ 3,065,902
Goodwill	85,048	85,048	$ 85,048
Capital expenditures	74	366
Community Banking [Member] | Operating Segments [Member]
Interest income	28,302	21,407
Interest expense	5,078	954
Noninterest income	2,804	3,547
Noninterest expense	14,911	14,164
Income before income taxes	10,788	12,080
Net income	8,502	9,537
Depreciation and amortization	876	875
Total assets	3,075,340	3,345,962
Goodwill	85,048	85,048
Capital expenditures	74	366
Trust and Investment Services [Member] | Operating Segments [Member]
Interest income	0	0
Interest expense	0	0
Noninterest income	1,568	1,809
Noninterest expense	737	693
Income before income taxes	831	1,116
Net income	655	876
Depreciation and amortization	1	2
Total assets	315	276
Goodwill	0	0
Capital expenditures	$ 0	$ 0

[1] Derived from audited consolidated financial statements