v3.25.2
Note 3 - Investments in Securities (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss $ 283,000   $ 283,000   $ 378,000
Debt Securities, Held-to-Maturity, Accrued Interest, Writeoff 0 $ 0 0 $ 0  
Debt Securities, Held-to-Maturity, Delinquent Amount 0   0   0
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest 0   0   0
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal) 0 0 0 0  
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss 227,000   227,000   16,000
Debt Securities, Available-for-Sale, Accrued Interest Writeoff 0 0 0 0  
Debt Securities, Available-for-Sale, Delinquent Amount 0   0   0
Proceeds from Sale of Debt Securities, Available-for-Sale 0 0 0 0  
Asset Pledged as Collateral [Member] | Federal Home Loan Bank Advances [Member]          
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss 54,800,000   54,800,000   55,500,000
Asset Pledged as Collateral [Member] | Federal Reserve Bank Advances [Member]          
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss 18,200,000   18,200,000   $ 16,000,000
US Government-sponsored Enterprises Debt Securities [Member]          
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Credit Loss Expense (Reversal) $ 0 $ 0 $ 0 $ 0