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, 2024	Dec. 31, 2023
Assets:
US Government Agency securities	$ 13,073	$ 12,985
US Government Treasury securities		4,942
Mortgage backed securities in government-sponsored entities	84,783	48,181
Obligations of state and political subdivisions	47,201	47,045
Other securities	533	2,337
Total	145,590	115,490
Derivative	1,654	716
Fair Value, Inputs, Level 1 [Member]
Assets:
US Government Agency securities	0	0
US Government Treasury securities		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	0
Fair Value, Inputs, Level 2 [Member]
Assets:
US Government Agency securities	13,073	12,985
US Government Treasury securities		4,942
Mortgage backed securities in government-sponsored entities	84,783	48,181
Obligations of state and political subdivisions	47,201	47,045
Other securities	533	2,337
Total	145,590	115,490
Derivative	0	0
Fair Value, Inputs, Level 3 [Member]
Assets:
US Government Agency securities	0	0
US Government Treasury securities		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	$ 716