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Investment Securities - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]          
Securities pledged as security, carrying value $ 138,306,000   $ 138,306,000   $ 136,799,000
Proceeds from sales of securities available for sale 0 $ 3,119,000 6,765,143 $ 6,907,932  
Debt securities, available-for-sale, realized loss 0 $ 9,000 157,000 $ 71,000  
Debt securities, available-for-sale, realized gain 0   0    
Investments reported at less than historical cost, fair value $ 244,243,000   $ 244,243,000   $ 255,749,000
Investments reported at less than historical cost as percentage of total securities 96.00%       98.00%