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Note 10 - Subordinated Debt Securities (Details Textual) - USD ($)
$ in Thousands
Jun. 30, 2022
Apr. 06, 2022
Nov. 12, 2019
May 24, 2017
Dec. 31, 2023
Dec. 31, 2022
Subordinated Debt         $ 44,320 $ 44,225
Subordinated Debt [Member]            
Debt Instrument, Face Amount   $ 20,000 $ 25,000 $ 18,600    
Debt Instrument, Interest Rate, Stated Percentage   5.125% 5.125% 6.00% 5.125%  
Extinguishment of Debt, Amount $ 18,600          
Subordinated Debt         $ 44,300 44,200
Debt Issuance Costs, Net         $ 700 $ 800
Subordinated Debt [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate   2.77%        
Subordinated Debt [Member] | London Interbank Offer Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate     3.49% 3.945%