Note 7 - Loans and Allowance for Credit Losses on Loans - Schedule of Nonaccrual Loans Included in Net Balance of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual	$ 12,104	$ 7,811
Financing Receivable, nonaccrual, No Allowance	3,767	48
Commercial Loans [Member]
Financing Receivable, Nonaccrual	1,088	93
Financing Receivable, nonaccrual, No Allowance	2	48
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Nonaccrual	395	0
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	525	350
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Nonaccrual	236	423
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Financing Receivable, Nonaccrual	0	0
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	446	538
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	4,073	439
Financing Receivable, nonaccrual, No Allowance	3,520	0
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Nonaccrual	0	0
Financing Receivable, nonaccrual, No Allowance	0	0
Land and Land Improvements [Member]
Financing Receivable, Nonaccrual	708	852
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	1,879	2,892
Financing Receivable, nonaccrual, No Allowance	0	0
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Nonaccrual	1,922	2,066
Financing Receivable, nonaccrual, No Allowance	245	0
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Nonaccrual	410	0
Financing Receivable, nonaccrual, No Allowance	0	0
Home Equity Loan [Member]
Financing Receivable, Nonaccrual	313	158
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	109	0
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