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Note 3 - Loans (Details Textual) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums $ 856 $ 871  
Loans and Leases Receivable, Gross 906,514 825,118 $ 822,411
Consumer and Other Loans [Member]      
Loans and Leases Receivable, Gross 8,099 12,681 $ 14,768
Consumer and Other Loans [Member] | Demand Deposit Overdrafts [Member]      
Loans and Leases Receivable, Gross $ 163 $ 175