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Note 8 - Other Borrowings (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Line of Credit Facility, Remaining Borrowing Capacity $ 368,200 $ 368,200 $ 287,300
Percentage of Assets, Maximum Borrowing Capacity from FHLB   16.00%  
Financing Receivable, before Allowance for Credit Loss 969,430 $ 969,430 920,523
Federal Home Loan Bank Stock 965 965 796
Other Borrowings 50,000 50,000 0
Letter of Credit [Member] | Asset Pledged as Collateral [Member]      
Financing Receivable, before Allowance for Credit Loss 397,400 397,400 286,600
Federal Home Loan Bank Stock 965 965 $ 796
Federal Home Loan Bank of Atlanta [Member]      
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available 247,700 247,700  
Unsecured Line of Credit [Member]      
Line of Credit Facility, Remaining Borrowing Capacity 51,000 51,000  
Secured Line of Credit Through Federal Reserve Bank [Member]      
Line of Credit Facility, Remaining Borrowing Capacity 69,500 69,500  
Bank Term Funding Program [Member] | Federal Reserve Bank Advances [Member]      
Proceeds from Short-Term Debt 50,000    
Short-Term Debt $ 50,000 $ 50,000  
Debt Instrument, Interest Rate, Stated Percentage 4.85% 4.85%  
Line of Credit [Member] | Unsecured Line of Credit [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 5,000 $ 5,000  
Long-term Line of Credit, Total $ 0 $ 0  
Debt Instrument, Basis Spread on Variable Rate   0.25%  
Debt Instrument, Interest Rate Floor   3.50%