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Short-Term Borrowings - Summary of Short-Term Borrowings (Detail) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Short-term Debt [Line Items]    
Total short-term borrowings $ 3,351 $ 300
Weighted average interest rate 4.84% 1.39%
Federal Funds Purchased [Member]    
Short-term Debt [Line Items]    
Total short-term borrowings $ 2,525 $ 300
Repurchase Agreements [Member]    
Short-term Debt [Line Items]    
Total short-term borrowings $ 826  
Short-term Debt [Member]    
Short-term Debt [Line Items]    
End of period interest rate 4.06% 4.30%