Fair Value Measurements - Summary of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets:
US Government Agency securities	$ 13,273	$ 13,073
Obligations of state and political subdivisions	47,465	47,201
Mortgage backed securities in government-sponsored entities	98,045	84,783
Other securities	400	533
Total	159,183	145,590
Derivative	689	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	13,273	13,073
Obligations of state and political subdivisions	47,465	47,201
Mortgage backed securities in government-sponsored entities	98,045	84,783
Other securities	400	533
Total	159,183	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	$ 689	$ 1,654