Investment Securities (Amortized Cost and Estimated Fair Value by Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 2,495
Due after one year through five years	14,064
Due after five years through ten years	29,194
Due after ten years	95,188
Amortized Cost	140,941	$ 120,832
Fair Value
Due in one year or less	2,498
Due after one year through five years	13,368
Due after five years through ten years	27,403
Due after ten years	90,070
Total	133,339	110,521
Amortized Cost
Due in one year or less	7,057
Due after one year through five years	118,995
Due after five years through ten years	36,270
Due after ten years	322,362
Amortized Cost	484,684	513,282
Fair Value
Due in one year or less	7,016
Due after one year through five years	113,847
Due after five years through ten years	33,973
Due after ten years	285,460
Total	$ 440,296	$ 457,830