Note 6 - Loans and Allowance for Credit Losses on Loans (ACLL) - Schedule of Nonaccrual Loans Included in Net Balance of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Nonaccrual	$ 21,121	$ 12,104
Financing Receivable, nonaccrual, No Allowance	4,268	3,767
Commercial Loans [Member]
Financing Receivable, Nonaccrual	7,537	1,088
Financing Receivable, nonaccrual, No Allowance	0	2
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Nonaccrual	357	395
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	254	525
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Nonaccrual	1,553	236
Financing Receivable, nonaccrual, No Allowance	73	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	434	446
Financing Receivable, nonaccrual, No Allowance	0	0
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Nonaccrual	4,467	4,073
Financing Receivable, nonaccrual, No Allowance	3,300	3,520
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Nonaccrual	1,313	0
Financing Receivable, nonaccrual, No Allowance	456	0
Land and Land Improvements [Member]
Financing Receivable, Nonaccrual	891	708
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	1,873	1,879
Financing Receivable, nonaccrual, No Allowance	0	0
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Nonaccrual	1,822	1,922
Financing Receivable, nonaccrual, No Allowance	439	245
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Nonaccrual	181	410
Financing Receivable, nonaccrual, No Allowance	0	0
Home Equity Loan [Member]
Financing Receivable, Nonaccrual	369	313
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	70	109
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