Note 5 - Loans and Leases - Change in Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Beginning balance	$ 15,624		$ 14,202		$ 9,747
Charge-offs	(815)		(989)		(1,168)
Recoveries	240		411		373
Provision	2,100		2,000		5,250
Ending balance	17,149		15,624		14,202
Ending balance: individually evaluated for impairment	161		1,259
Ending balance: collectively evaluated for impairment	16,988		14,365
Ending balance	1,564,174	[1]	1,433,128	[2]
Ending balance: individually evaluated for impairment	3,868		5,935
Ending balance: collectively evaluated for impairment	1,560,306		1,427,193
Commercial Portfolio Segment [Member]
Beginning balance	2,204		2,407		1,484
Charge-offs	(371)		(130)		(372)
Recoveries	11		23		26
Provision	1,080		(96)		1,269
Ending balance	2,924		2,204		2,407
Ending balance: individually evaluated for impairment	48		18
Ending balance: collectively evaluated for impairment	2,876		2,186
Ending balance	234,478	[1]	236,304	[2]
Ending balance: individually evaluated for impairment	719		154
Ending balance: collectively evaluated for impairment	233,759		236,150
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	7,422		6,383		3,933
Charge-offs	(67)		(491)		(465)
Recoveries	153		250		30
Provision	(346)		1,280		2,885
Ending balance	7,162		7,422		6,383
Ending balance: individually evaluated for impairment	112		1,237
Ending balance: collectively evaluated for impairment	7,050		6,185
Ending balance	606,618	[1]	582,750	[2]
Ending balance: individually evaluated for impairment	2,782		5,034
Ending balance: collectively evaluated for impairment	603,836		577,716
Consumer Portfolio Segment [Member]
Beginning balance	2,404		2,552		2,013
Charge-offs	(377)		(206)		(296)
Recoveries	74		138		120
Provision	726		(80)		715
Ending balance	2,827		2,404		2,552
Ending balance: individually evaluated for impairment	1		4
Ending balance: collectively evaluated for impairment	2,826		2,400
Ending balance	282,710	[1],[3]	253,294	[2],[4]
Ending balance: individually evaluated for impairment	364		175
Ending balance: collectively evaluated for impairment	282,346		253,119
Residential Portfolio Segment [Member]
Beginning balance	3,508		2,781		2,278
Charge-offs	0		(162)		(35)
Recoveries	2		0		197
Provision	659		889		341
Ending balance	4,169		3,508		2,781
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	4,169		3,508
Ending balance	440,368	[1]	360,780	[2]
Ending balance: individually evaluated for impairment	3		572
Ending balance: collectively evaluated for impairment	440,365		360,208
Unallocated Financing Receivables [Member]
Beginning balance	86		79		39
Charge-offs	0		0		0
Recoveries	0		0		0
Provision	(19)		7		40
Ending balance	67		86		$ 79
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	67		86
Ending balance	0	[1]	0	[2]
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	$ 0		$ 0

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

[2] Includes $3.0 million of net deferred loan costs.

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

[4] Net of unearned lease revenue of $1.4 million.