Note 5 - Loans and Leases - Change in Allowance (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2022		Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021	Dec. 31, 2021
Beginning balance	$ 16,081		$ 14,839	$ 15,624		$ 14,202	$ 14,202
Charge-offs	(73)		(161)	(168)		(363)	(989)
Recoveries	57		267	84		306	411
Provision	525		300	1,050		1,100	2,000
Ending balance	16,590		15,245	16,590		15,245	15,624
Ending balance: individually evaluated for impairment	606			606			1,259
Ending balance: collectively evaluated for impairment	15,984			15,984			14,365
Ending balance	1,490,305	[1]		1,490,305	[1]		1,433,128	[2]
Ending balance: individually evaluated for impairment	4,564			4,564			5,935
Ending balance: collectively evaluated for impairment	1,485,741			1,485,741			1,427,193
Commercial Portfolio Segment [Member]
Beginning balance	2,780		2,342	2,204		2,407	2,407
Charge-offs	(31)		(99)	(31)		(106)	(130)
Recoveries	2		11	4		15	23
Provision	(6)		70	568		8	(96)
Ending balance	2,745		2,324	2,745		2,324	2,204
Ending balance: individually evaluated for impairment	211			211			18
Ending balance: collectively evaluated for impairment	2,534			2,534			2,186
Ending balance	219,439	[1]		219,439	[1]		236,304	[2]
Ending balance: individually evaluated for impairment	791			791			154
Ending balance: collectively evaluated for impairment	218,648			218,648			236,150
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	6,822		7,080	7,422		6,383	6,383
Charge-offs	0		(8)	(1)		(132)	(491)
Recoveries	19		224	28		235	250
Provision	122		(68)	(486)		742	1,280
Ending balance	6,963		7,228	6,963		7,228	7,422
Ending balance: individually evaluated for impairment	372			372			1,237
Ending balance: collectively evaluated for impairment	6,591			6,591			6,185
Ending balance	597,243	[1]		597,243	[1]		582,750	[2]
Ending balance: individually evaluated for impairment	3,360			3,360			5,034
Ending balance: collectively evaluated for impairment	593,883			593,883			577,716
Consumer Portfolio Segment [Member]
Beginning balance	2,547		2,415	2,404		2,552	2,552
Charge-offs	(42)		(54)	(136)		(82)	(206)
Recoveries	36		32	50		56	138
Provision	229		104	452		(29)	(80)
Ending balance	2,770		2,497	2,770		2,497	2,404
Ending balance: individually evaluated for impairment	23			23			4
Ending balance: collectively evaluated for impairment	2,747			2,747			2,400
Ending balance	272,989	[1],[3]		272,989	[1],[3]		253,294	[2],[4]
Ending balance: individually evaluated for impairment	371			371			175
Ending balance: collectively evaluated for impairment	272,618			272,618			253,119
Residential Portfolio Segment [Member]
Beginning balance	3,851		2,915	3,508		2,781	2,781
Charge-offs	0		0	0		(43)	(162)
Recoveries	0		0	2		0	0
Provision	186		155	527		332	889
Ending balance	4,037		3,070	4,037		3,070	3,508
Ending balance: individually evaluated for impairment	0			0			0
Ending balance: collectively evaluated for impairment	4,037			4,037			3,508
Ending balance	400,634	[1]		400,634	[1]		360,780	[2]
Ending balance: individually evaluated for impairment	42			42			572
Ending balance: collectively evaluated for impairment	400,592			400,592			360,208
Unallocated Financing Receivables [Member]
Beginning balance	81		87	86		79	79
Charge-offs	0		0	0		0	0
Recoveries	0		0	0		0	0
Provision	(6)		39	(11)		47	7
Ending balance	75		$ 126	75		$ 126	86
Ending balance: individually evaluated for impairment	0			0			0
Ending balance: collectively evaluated for impairment	75			75			86
Ending balance	0	[1]		0	[1]		0	[2]
Ending balance: individually evaluated for impairment	0			0			0
Ending balance: collectively evaluated for impairment	$ 0			$ 0			$ 0

[1] Includes $4.3 million of net deferred loan costs.

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

[3] Net of unearned lease revenue of $1.8 million

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