Note 7 - Loans and Allowance for Credit Losses on Loans - Allowance for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss	$ 32,298	$ 32,246
Financing Receivable, Provision for Credit Losses loans	7,278	915
Financing Receivable, Charge offs	(1,439)	(1,507)
Financing Receivable, Recoveries	762	553
Financing Receivable, Allowance for Credit Loss	38,899	32,298
Financing Receivable, Adjustment		91
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Loss	3,218	2,304
Financing Receivable, Provision for Credit Losses loans	1,774	1,112
Financing Receivable, Charge offs	(237)	(222)
Financing Receivable, Recoveries	186	24
Financing Receivable, Allowance for Credit Loss	4,941	3,218
Financing Receivable, Adjustment		0
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Allowance for Credit Loss	1,092	954
Financing Receivable, Provision for Credit Losses loans	(126)	71
Financing Receivable, Charge offs	0	(4)
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	966	1,092
Financing Receivable, Adjustment		71
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Allowance for Credit Loss	1,362	3,173
Financing Receivable, Provision for Credit Losses loans	(79)	(1,812)
Financing Receivable, Charge offs	(108)	0
Financing Receivable, Recoveries	1	1
Financing Receivable, Allowance for Credit Loss	1,176	1,362
Financing Receivable, Adjustment		0
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Allowance for Credit Loss	575	610
Financing Receivable, Provision for Credit Losses loans	(88)	(35)
Financing Receivable, Charge offs	(61)	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	426	575
Financing Receivable, Adjustment		0
Commercial Real Estate Nonowner Occupied Hotels and Motel [Member]
Financing Receivable, Allowance for Credit Loss	2,532	2,135
Financing Receivable, Provision for Credit Losses loans	(1,329)	397
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	1,203	2,532
Financing Receivable, Adjustment		0
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Financing Receivable, Allowance for Credit Loss	133	337
Financing Receivable, Provision for Credit Losses loans	(51)	(204)
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	82	133
Financing Receivable, Adjustment		0
Multifamily [Member]
Financing Receivable, Allowance for Credit Loss	1,821	1,547
Financing Receivable, Provision for Credit Losses loans	1,080	265
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	6	9
Financing Receivable, Allowance for Credit Loss	2,907	1,821
Financing Receivable, Adjustment		0
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Allowance for Credit Loss	1,074	981
Financing Receivable, Provision for Credit Losses loans	228	93
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	60	0
Financing Receivable, Allowance for Credit Loss	1,362	1,074
Financing Receivable, Adjustment		0
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Allowance for Credit Loss	1,820	1,104
Financing Receivable, Provision for Credit Losses loans	593	947
Financing Receivable, Charge offs	0	(233)
Financing Receivable, Recoveries	39	2
Financing Receivable, Allowance for Credit Loss	2,452	1,820
Financing Receivable, Adjustment		0
Land and Land Improvements [Member]
Financing Receivable, Allowance for Credit Loss	3,468	4,084
Financing Receivable, Provision for Credit Losses loans	76	(628)
Financing Receivable, Charge offs	(71)	0
Financing Receivable, Recoveries	9	12
Financing Receivable, Allowance for Credit Loss	3,482	3,468
Financing Receivable, Adjustment		0
Construction Loans [Member]
Financing Receivable, Allowance for Credit Loss	6,346	4,648
Financing Receivable, Provision for Credit Losses loans	4,792	1,698
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	11,138	6,346
Financing Receivable, Adjustment		0
Residential 1-4 Family Real Estate, Personal Residence [Member]
Financing Receivable, Allowance for Credit Loss	2,765	3,559
Financing Receivable, Provision for Credit Losses loans	230	(548)
Financing Receivable, Charge offs	(112)	(365)
Financing Receivable, Recoveries	56	119
Financing Receivable, Allowance for Credit Loss	2,939	2,765
Financing Receivable, Adjustment		0
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Allowance for Credit Loss	2,834	2,736
Financing Receivable, Provision for Credit Losses loans	(848)	177
Financing Receivable, Charge offs	(211)	(189)
Financing Receivable, Recoveries	132	90
Financing Receivable, Allowance for Credit Loss	1,907	2,834
Financing Receivable, Adjustment		20
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Allowance for Credit Loss	2,374	3,007
Financing Receivable, Provision for Credit Losses loans	294	(633)
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	2,668	2,374
Financing Receivable, Adjustment		0
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Loss	497	713
Financing Receivable, Provision for Credit Losses loans	179	(206)
Financing Receivable, Charge offs	(8)	(26)
Financing Receivable, Recoveries	37	16
Financing Receivable, Allowance for Credit Loss	705	497
Financing Receivable, Adjustment		0
Mortgage Warehouse Lines [Member]
Financing Receivable, Allowance for Credit Loss	0	0
Financing Receivable, Provision for Credit Losses loans	0	0
Financing Receivable, Charge offs	0	0
Financing Receivable, Recoveries	0	0
Financing Receivable, Allowance for Credit Loss	0	0
Financing Receivable, Adjustment		0
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	163	216
Financing Receivable, Provision for Credit Losses loans	70	(44)
Financing Receivable, Charge offs	(174)	(131)
Financing Receivable, Recoveries	115	122
Financing Receivable, Allowance for Credit Loss	174	163
Financing Receivable, Adjustment		0
Credit Card Receivable [Member]
Financing Receivable, Allowance for Credit Loss	17	17
Financing Receivable, Provision for Credit Losses loans	7	10
Financing Receivable, Charge offs	(24)	(16)
Financing Receivable, Recoveries	17	6
Financing Receivable, Allowance for Credit Loss	17	17
Financing Receivable, Adjustment		0
Bank Overdrafts [Member]
Financing Receivable, Allowance for Credit Loss	207	121
Financing Receivable, Provision for Credit Losses loans	476	255
Financing Receivable, Charge offs	(433)	(321)
Financing Receivable, Recoveries	104	152
Financing Receivable, Allowance for Credit Loss	$ 354	207
Financing Receivable, Adjustment		$ 0