v3.25.2
Fair Value of Financial Instruments - Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale $ 431,102 $ 426,556
Level 1 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 115,468 126,034
Level 2 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 314,180 298,895
Level 2 [Member] | Interest rate swaps | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Liabilities (1,826) (976)
Level 3 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 1,454 1,627
U.S. Treasury [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 95,390 105,999
U.S. Treasury [Member] | Level 1 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 95,390 105,999
U.S. Government Agencies [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 137,666 135,166
U.S. Government Agencies [Member] | Level 1 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 20,078 20,035
U.S. Government Agencies [Member] | Level 2 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 117,588 115,131
Mortgage-backed Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 136,953 120,631
Mortgage-backed Securities [Member] | Level 2 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 136,953 120,631
State and Local Governments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 61,093 64,760
State and Local Governments [Member] | Level 2 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 59,639 63,133
State and Local Governments [Member] | Level 3 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale 1,454 1,627
State and Local Governments [Member] | Level 3 [Member] | Fair Value on a Recurring Basis [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Securities Available-for-Sale $ 1,454 $ 1,627