Note 5 - Loans and Leases - Change in Allowance (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2023		Jun. 30, 2022	Jun. 30, 2023		Jun. 30, 2022	Dec. 31, 2022
Beginning balance	$ 17,910		$ 16,081	$ 17,149		$ 15,624	$ 15,624
Initial allowance on loans purchased with credit deterioration				126
Charge-offs	(293)		(73)	(597)		(168)	(815)
Recoveries	58		57	199		84	240
Provision for credit losses on loans	675		525	855		1,050
Ending balance	18,350		16,590	18,350		16,590	17,149
Ending balance: individually evaluated	295			295			161
Ending balance: collectively evaluated	18,055			18,055			16,988
Financing Receivable, before Allowance for Credit Loss	1,629,664	[1],[2]		1,629,664	[1],[2]		1,564,174	[3],[4]
Ending balance: individually evaluated	8,563			8,563			3,868
Ending balance: collectively evaluated	1,621,101			1,621,101			1,560,306
Provision	675		525			1,050	2,100
Ending balance: individually evaluated for impairment	295			295			161
Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				618
Ending balance							618
Commercial Portfolio Segment [Member]
Beginning balance	2,550		2,780	2,924		2,204	2,204
Initial allowance on loans purchased with credit deterioration				0
Charge-offs	(150)		(31)	(320)		(31)	(371)
Recoveries	1		2	22		4	11
Provision for credit losses on loans				(543)
Ending balance	2,361		2,745	2,361		2,745	2,924
Ending balance: individually evaluated	16			16			48
Ending balance: collectively evaluated	2,345			2,345			2,876
Financing Receivable, before Allowance for Credit Loss	212,182	[1]		212,182	[1]		234,478	[3]
Ending balance: individually evaluated	668			668			719
Ending balance: collectively evaluated	211,514			211,514			233,759
Provision	(40)		(6)			568	1,080
Ending balance: individually evaluated for impairment	16			16			48
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				278
Ending balance							278
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	8,157		6,822	7,162		7,422	7,422
Initial allowance on loans purchased with credit deterioration				126
Charge-offs	0		0	(32)		(1)	(67)
Recoveries	2		19	41		28	153
Provision for credit losses on loans				525
Ending balance	8,578		6,963	8,578		6,963	7,162
Ending balance: individually evaluated	219			219			112
Ending balance: collectively evaluated	8,359			8,359			7,050
Financing Receivable, before Allowance for Credit Loss	648,613	[1]		648,613	[1]		606,618	[3]
Ending balance: individually evaluated	7,000			7,000			2,782
Ending balance: collectively evaluated	641,613			641,613			603,836
Provision	419		122			(486)	(346)
Ending balance: individually evaluated for impairment	219			219			112
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				756
Ending balance							756
Consumer Portfolio Segment [Member]
Beginning balance	2,448		2,547	2,827		2,404	2,404
Initial allowance on loans purchased with credit deterioration				0
Charge-offs	(143)		(42)	(245)		(136)	(377)
Recoveries	55		36	126		50	74
Provision for credit losses on loans				353
Ending balance	2,514		2,770	2,514		2,770	2,827
Ending balance: individually evaluated	56			56			1
Ending balance: collectively evaluated	2,458			2,458			2,826
Financing Receivable, before Allowance for Credit Loss	290,966	[1],[5]		290,966	[1],[5]		282,710	[3],[6]
Ending balance: individually evaluated	286			286			364
Ending balance: collectively evaluated	290,680			290,680			282,346
Provision	154		229			452	726
Ending balance: individually evaluated for impairment	56			56			1
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				(547)
Ending balance							(547)
Residential Portfolio Segment [Member]
Beginning balance	4,683		3,851	4,169		3,508	3,508
Initial allowance on loans purchased with credit deterioration				0
Charge-offs	0		0	0		0	0
Recoveries	0		0	10		2	2
Provision for credit losses on loans				470
Ending balance	4,847		4,037	4,847		4,037	4,169
Ending balance: individually evaluated	4			4			0
Ending balance: collectively evaluated	4,843			4,843			4,169
Financing Receivable, before Allowance for Credit Loss	477,903	[1]		477,903	[1]		440,368	[3]
Ending balance: individually evaluated	609			609			3
Ending balance: collectively evaluated	477,294			477,294			440,365
Provision	164		186			527	659
Ending balance: individually evaluated for impairment	4			4			0
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				198
Ending balance							198
Unallocated Financing Receivables [Member]
Beginning balance	72		81	67		86	86
Initial allowance on loans purchased with credit deterioration				0
Charge-offs	0		0	0		0	0
Recoveries	0		0	0		0	0
Provision for credit losses on loans				50
Ending balance	50		75	50		75	67
Ending balance: individually evaluated	0			0			0
Ending balance: collectively evaluated	50			50			67
Financing Receivable, before Allowance for Credit Loss	0	[1]		0	[1]		0	[3]
Ending balance: individually evaluated	0			0			0
Ending balance: collectively evaluated	0			0			0
Provision	(22)		$ (6)			$ (11)	(19)
Ending balance: individually evaluated for impairment	$ 0			0			0
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				$ (67)
Ending balance							$ (67)

[1] Includes $4.9 million of net deferred loan costs.

[2] Includes net deferred loan costs of $4.9 million.

[3] Includes $4.6 million of net deferred loan costs.

[4] Includes net deferred loan costs of $4.6 million.

[5] Net of unearned lease revenue of $1.9 million

[6] Net of unearned lease revenue of $1.7 million.