Fair Value Measurements - Summary of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets:
US Government Agency securities	$ 13,345	$ 13,073
Obligations of state and political subdivisions	46,319	47,201
Mortgage backed securities in government-sponsored entities	109,554	84,783
Other securities	351	533
Total	169,569	145,590
Derivative	144	1,654
Fair Value, Inputs, Level 1 [Member]
Assets:
US Government Agency securities	0	0
Obligations of state and political subdivisions	0	0
Mortgage backed securities in government-sponsored entities	0	0
Other securities	0	0
Total	0	0
Derivative	0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
US Government Agency securities	13,345	13,073
Obligations of state and political subdivisions	46,319	47,201
Mortgage backed securities in government-sponsored entities	109,554	84,783
Other securities	351	533
Total	169,569	145,590
Derivative	0	0
Fair Value, Inputs, Level 3 [Member]
Assets:
US Government Agency securities	0	0
Obligations of state and political subdivisions	0	0
Mortgage backed securities in government-sponsored entities	0	0
Other securities	0	0
Total	0	0
Derivative	$ 144	$ 1,654