Quarterly report pursuant to Section 13 or 15(d)

Securities - Additional Information (Detail)

v3.24.3
Securities - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]        
Proceeds from sales of securities $ 0 $ 0 $ 8,149,000  
Net losses in earnings resulting from sale of securities     (1,871,000)  
Net unrealized losses recorded in accumulated other comprehensive income     $ (1,700,000)  
Unrealized loss on securities   0    
Available for sale securities pledged as collateral $ 31,500,000 $ 31,500,000   $ 24,800,000
Minimum | U.S. Government and its Agencies        
Debt Securities, Available-for-sale [Line Items]        
Holdings of securities as percentage of share holders' equity 10.00% 10.00%