Quarterly report pursuant to Section 13 or 15(d)

Derivatives and Hedging Activities - Additional Information (Details)

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Derivatives and Hedging Activities - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Mar. 31, 2024
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Derivative [Line Items]          
Derivative liability, including accrued interest     $ 0   $ 0
Derivative fair value of liabilities $ 4,559,000   4,559,000   5,920,000
Derivative fair value of assets 5,284,000   5,284,000   6,245,000
Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging          
Derivative [Line Items]          
Notional Amount   $ 75,000,000     $ 100,000,000
Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging | Prime-indexed loans          
Derivative [Line Items]          
Principal balance 137,600,000   137,600,000    
Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging | SOFR          
Derivative [Line Items]          
Principal balance 102,800,000   102,800,000    
Variable interest rate basis   one-month SOFR      
Other Income          
Derivative [Line Items]          
Fee income $ 0   0 $ 600,000  
Interest Income | Cash Flow Hedging          
Derivative [Line Items]          
Increase to interest income     $ 100,000