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, 2024	Dec. 31, 2023
Assets:
US Government Agency securities	$ 12,956	$ 12,985
US Government Treasury securities	3,977	4,942
Obligations of state and political subdivisions	45,416	47,045
Mortgage backed securities in government-sponsored entities	77,233	48,181
Other securities	539	2,337
Total	140,121	115,490
Derivative	2,215	716
Fair Value, Inputs, Level 1 [Member]
Assets:
US Government Agency securities	0	0
US Government Treasury 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	12,956	12,985
US Government Treasury securities	3,977	4,942
Obligations of state and political subdivisions	45,416	47,045
Mortgage backed securities in government-sponsored entities	77,233	48,181
Other securities	539	2,337
Total	140,121	115,490
Derivative	0	0
Fair Value, Inputs, Level 3 [Member]
Assets:
US Government Agency securities	0	0
US Government Treasury 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	$ 2,215	$ 716