Investment Securities - Scheduled Maturities of Investment Securities Available-for-Sale and Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Available-for-sale, maturing within one year, amortized cost	$ 3,989
Available-for-sale, maturing after one to five years, amortized cost	50,154
Available-for-sale, maturing after five to ten years, amortized cost	54,852
Available-for-sale, maturing after ten years, amortized cost	25,810
Available-for-sale, amortized cost	134,805	$ 144,893
Available-for-sale, maturing within one year, estimated fair value	3,878
Available-for-sale, maturing after one to five years, estimated fair value	46,853
Available-for-sale, maturing after five to ten years, estimated fair value	48,970
Available-for-sale, maturing after ten years, estimated fair value	25,679
Available-for-sale, amortized cost	125,380	135,565
Held-to-maturity, maturing after one to five years, amortized cost	184
Held-to-maturity, maturing after five to ten years, amortized cost	618
Held-to-maturity, maturing after ten years, amortized cost	181
Held-to-maturity, amortized cost	983	1,104
Held-to-maturity, maturing after one to five years, estimated fair value	176
Held-to-maturity, maturity after five to ten years, estimated fair value	579
Held-to-maturity, maturing after ten years, estimated fair value	166
Held-to-maturity, amortized cost	$ 921	$ 1,041