Fair Value Measurements - Summary of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Assets:
US Government Agency securities	$ 11,629	$ 13,073
Mortgage backed securities in government-sponsored entities	203,049	84,783
Obligations of state and political subdivisions	47,514	47,201
Other securities	428	533
Total	262,620	145,590
Derivative		1,654
Liabilities:
Derivative	24
Fair Value, Inputs, Level 1 [Member]
Assets:
US Government Agency securities	0	0
Mortgage backed securities in government-sponsored entities	0	0
Obligations of state and political subdivisions	0	0
Other securities	0	0
Total	0	0
Derivative		0
Liabilities:
Derivative	0
Fair Value, Inputs, Level 2 [Member]
Assets:
US Government Agency securities	11,629	13,073
Mortgage backed securities in government-sponsored entities	203,049	84,783
Obligations of state and political subdivisions	47,514	47,201
Other securities	428	533
Total	262,620	145,590
Derivative		0
Liabilities:
Derivative	0
Fair Value, Inputs, Level 3 [Member]
Assets:
US Government Agency securities	0	0
Mortgage backed securities in government-sponsored entities	0	0
Obligations of state and political subdivisions	0	0
Other securities	0	0
Total	0	0
Derivative		$ 1,654
Liabilities:
Derivative	$ 24