Investment Securities - Amortized Cost and Fair Value by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Due in one year or less	$ 10,576
Due after one year through five years	20,105
Due after five years through ten years	33,465
Due after ten years	116,660
Total	180,806
Mortgage-backed securities	115,469
Total available-for-sale securities	296,275	$ 297,149
Fair Value
Due in one year or less	10,456
Due after one year through five years	18,952
Due after five years through ten years	29,321
Due after ten years	93,815
Total	152,544
Mortgage-backed securities	99,072
Available-for-sale debt securities, at fair value	$ 251,616	$ 250,747