Fair Value Measurements - Recurring Assets (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
U.S. Government and agency securities
Fair Value Measurements [Abstract]
Total assets, fair value	$ 3,933	$ 3,943
Mortgage-backed securities
Fair Value Measurements [Abstract]
Total assets, fair value	19,623	15,335
State and political securities
Fair Value Measurements [Abstract]
Total assets, fair value	109,080	115,615
Other debt securities
Fair Value Measurements [Abstract]
Total assets, fair value	54,609	56,032
Equity securities
Fair Value Measurements [Abstract]
Total assets, fair value	1,112	1,122
Level I | U.S. Government and agency securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level I | Mortgage-backed securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level I | State and political securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level I | Other debt securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level I | Equity securities
Fair Value Measurements [Abstract]
Total assets, fair value	1,112	1,122
Level II | U.S. Government and agency securities
Fair Value Measurements [Abstract]
Total assets, fair value	3,933	3,943
Level II | Mortgage-backed securities
Fair Value Measurements [Abstract]
Total assets, fair value	19,623	15,335
Level II | State and political securities
Fair Value Measurements [Abstract]
Total assets, fair value	109,080	115,615
Level II | Other debt securities
Fair Value Measurements [Abstract]
Total assets, fair value	54,609	56,032
Level II | Equity securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level III | U.S. Government and agency securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level III | Mortgage-backed securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level III | State and political securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level III | Other debt securities
Fair Value Measurements [Abstract]
Total assets, fair value	0	0
Level III | Equity securities
Fair Value Measurements [Abstract]
Total assets, fair value	$ 0	$ 0