Note 6 - Loans and Allowance for Credit Losses on Loans - Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss	$ 35,063	$ 33,885	$ 32,298	$ 32,246	$ 32,246
Financing Receivable, Provision for Credit Losses loans	1,695	(1,200)	5,128	830	915
Financing Receivable, Charge offs	(265)	(528)	(1,189)	(1,224)	(1,507)
Financing Receivable, Recoveries	257	158	513	463	553
Financing Receivable, Adjustment		91		91	91
Financing Receivable, Allowance for Credit Loss	36,750	32,406	36,750	32,406	32,298
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Loss	4,545	2,709	3,218	2,304	2,304
Financing Receivable, Provision for Credit Losses loans	531	46	1,990	655	1,112
Financing Receivable, Charge offs	(35)	0	(237)	(222)	(222)
Financing Receivable, Recoveries	77	4	147	22	24
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	5,118	2,759	5,118	2,759	3,218
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Allowance for Credit Loss	1,180	986	1,092	954	954
Financing Receivable, Provision for Credit Losses loans	(231)	(46)	(143)	(11)	71
Financing Receivable, Charge offs	0	0	0	(3)	(4)
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		71		71	71
Financing Receivable, Allowance for Credit Loss	949	1,011	949	1,011	1,092
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Allowance for Credit Loss	1,597	3,519	1,362	3,173	3,173
Financing Receivable, Provision for Credit Losses loans	82	(1,791)	316	(1,446)	(1,812)
Financing Receivable, Charge offs	(108)	0	(108)	0	0
Financing Receivable, Recoveries	0	0	1	1	1
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	1,571	1,728	1,571	1,728	1,362
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Allowance for Credit Loss	457	556	575	610	610
Financing Receivable, Provision for Credit Losses loans	(4)	46	(122)	(8)	(35)
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	453	602	453	602	575
Commercial Real Estate Nonowner Occupied Hotels and Motel [Member]
Financing Receivable, Allowance for Credit Loss	1,159	2,569	2,532	2,135	2,135
Financing Receivable, Provision for Credit Losses loans	93	29	(1,280)	463	397
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	1,252	2,598	1,252	2,598	2,532
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Financing Receivable, Allowance for Credit Loss	97	157	133	337	337
Financing Receivable, Provision for Credit Losses loans	(11)	19	(47)	(161)	(204)
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	86	176	86	176	133
Multifamily [Member]
Financing Receivable, Allowance for Credit Loss	2,330	1,637	1,821	1,547	1,547
Financing Receivable, Provision for Credit Losses loans	(118)	457	387	544	265
Financing Receivable, Charge offs	0	(233)	0	(233)	0
Financing Receivable, Recoveries	0	4	4	7	9
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	2,212	1,865	2,212	1,865	1,821
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Allowance for Credit Loss	1,891	1,471	1,074	981	981
Financing Receivable, Provision for Credit Losses loans	(560)	107	254	597	93
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	52	0	55	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	1,383	1,578	1,383	1,578	1,074
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Allowance for Credit Loss	2,103	1,425	1,820	1,104	1,104
Financing Receivable, Provision for Credit Losses loans	48	330	325	651	947
Financing Receivable, Charge offs	0	0	0	0	(233)
Financing Receivable, Recoveries	30	0	36	0	2
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	2,181	1,755	2,181	1,755	1,820
Land and Land Improvements [Member]
Financing Receivable, Allowance for Credit Loss	3,600	3,705	3,468	4,084	4,084
Financing Receivable, Provision for Credit Losses loans	(95)	(166)	104	(552)	(628)
Financing Receivable, Charge offs	0	0	(72)	0	0
Financing Receivable, Recoveries	2	2	7	9	12
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	3,507	3,541	3,507	3,541	3,468
Construction Loans [Member]
Financing Receivable, Allowance for Credit Loss	8,208	6,217	6,346	4,648	4,648
Financing Receivable, Provision for Credit Losses loans	1,644	(241)	3,506	1,328	1,698
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	9,852	5,976	9,852	5,976	6,346
Residential 1-4 Family Real Estate, Personal Residence [Member]
Financing Receivable, Allowance for Credit Loss	2,669	3,050	2,765	3,559	3,559
Financing Receivable, Provision for Credit Losses loans	4	(31)	(38)	(515)	(548)
Financing Receivable, Charge offs	(21)	(189)	(105)	(298)	(365)
Financing Receivable, Recoveries	13	21	43	105	119
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	2,665	2,851	2,665	2,851	2,765
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Allowance for Credit Loss	2,097	2,546	2,834	2,736	2,736
Financing Receivable, Provision for Credit Losses loans	(124)	143	(683)	13	177
Financing Receivable, Charge offs	(4)	0	(196)	(89)	(189)
Financing Receivable, Recoveries	12	48	26	77	90
Financing Receivable, Adjustment		20		20	20
Financing Receivable, Allowance for Credit Loss	1,981	2,757	1,981	2,757	2,834
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Allowance for Credit Loss	2,181	2,431	2,374	3,007	3,007
Financing Receivable, Provision for Credit Losses loans	442	(144)	249	(720)	(633)
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	2,623	2,287	2,623	2,287	2,374
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Loss	399	551	497	713	713
Financing Receivable, Provision for Credit Losses loans	17	(15)	(82)	(161)	(206)
Financing Receivable, Charge offs	0	0	(8)	(26)	(26)
Financing Receivable, Recoveries	11	3	20	13	16
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	427	539	427	539	497
Mortgage Warehouse Lines [Member]
Financing Receivable, Allowance for Credit Loss	0	0	0	0	0
Financing Receivable, Provision for Credit Losses loans	0	0	0	0	0
Financing Receivable, Charge offs	0	0	0	0	0
Financing Receivable, Recoveries	0	0	0	0	0
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	0	0	0	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	254	172	163	216	216
Financing Receivable, Provision for Credit Losses loans	(61)	(5)	55	(39)	(44)
Financing Receivable, Charge offs	(47)	(24)	(121)	(100)	(131)
Financing Receivable, Recoveries	30	26	79	92	122
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	176	169	176	169	163
Credit Card Receivable [Member]
Financing Receivable, Allowance for Credit Loss	17	16	17	17	17
Financing Receivable, Provision for Credit Losses loans	(7)	4	9	11	10
Financing Receivable, Charge offs	(6)	(4)	(24)	(16)	(16)
Financing Receivable, Recoveries	13	1	15	5	6
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	17	17	17	17	17
Bank Overdrafts [Member]
Financing Receivable, Allowance for Credit Loss	279	168	207	121	121
Financing Receivable, Provision for Credit Losses loans	45	58	328	181	255
Financing Receivable, Charge offs	(44)	(78)	(318)	(237)	(321)
Financing Receivable, Recoveries	17	49	80	132	152
Financing Receivable, Adjustment		0		0	0
Financing Receivable, Allowance for Credit Loss	$ 297	$ 197	$ 297	$ 197	$ 207