Note 6 - Loans and Allowance for Credit Losses on Loans - Schedule of Nonaccrual Loans Included in Net Balance of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual	$ 9,196	$ 12,692
Financing Receivable, nonaccrual, No Allowance	977	96
Commercial Loans [Member]
Financing Receivable, Nonaccrual	347	740
Financing Receivable, nonaccrual, No Allowance	64	96
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	1,010	775
Financing Receivable, nonaccrual, No Allowance	656	0
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Nonaccrual	298	341
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Financing Receivable, Nonaccrual	0	3,085
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Multifamily [Member]
Financing Receivable, Nonaccrual	112	55
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	440	338
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Nonaccrual	0	9
Financing Receivable, nonaccrual, No Allowance	0	0
Land and Land Improvements [Member]
Financing Receivable, Nonaccrual	902	1,560
Financing Receivable, nonaccrual, No Allowance	0	0
Construction Loans [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Residential 1-4 Family Real Estate, Personal Residence [Member]
Financing Receivable, Nonaccrual	3,479	2,504
Financing Receivable, nonaccrual, No Allowance	0	0
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Nonaccrual	2,437	3,094
Financing Receivable, nonaccrual, No Allowance	257	0
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Home Equity Loan [Member]
Financing Receivable, Nonaccrual	167	174
Financing Receivable, nonaccrual, No Allowance	0	0
Mortgage Warehouse Lines [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Nonaccrual	4	17
Financing Receivable, nonaccrual, No Allowance	0	0
Credit Card Receivable [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Bank Overdrafts [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	$ 0	$ 0