Investments in Securities - Aggregate Fair Value and Unrealized Losses of Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Held To Maturity Securities [Line Items]
Less than 12 Months, Fair Value	$ 37,022	$ 31,562
Less than 12 Months, Unrealized Losses	(2,468)	(449)
12 Months or Longer, Fair Value	29,756	6,779
12 Months or Longer, Unrealized Losses	(5,425)	(185)
Fair Value, Total	66,778	38,341
Unrealized Losses, Total	(7,893)	(634)
Debt Securities Issued by U.S. Government-Sponsored Enterprises
Schedule Of Held To Maturity Securities [Line Items]
Less than 12 Months, Fair Value	2,847	2,919
Less than 12 Months, Unrealized Losses	(40)	(73)
12 Months or Longer, Fair Value	5,046	2,520
12 Months or Longer, Unrealized Losses	(538)	(69)
Fair Value, Total	7,893	5,439
Unrealized Losses, Total	(578)	(142)
Mortgage-backed Securities
Schedule Of Held To Maturity Securities [Line Items]
Less than 12 Months, Fair Value	20,795	28,643
Less than 12 Months, Unrealized Losses	(1,294)	(376)
12 Months or Longer, Fair Value	24,710	4,259
12 Months or Longer, Unrealized Losses	(4,887)	(116)
Fair Value, Total	45,505	32,902
Unrealized Losses, Total	(6,181)	$ (492)
Corporate Bonds
Schedule Of Held To Maturity Securities [Line Items]
Less than 12 Months, Fair Value	10,571
Less than 12 Months, Unrealized Losses	(1,041)
12 Months or Longer, Fair Value	0
12 Months or Longer, Unrealized Losses	0
Fair Value, Total	10,571
Unrealized Losses, Total	(1,041)
US Treasury Securities
Schedule Of Held To Maturity Securities [Line Items]
Less than 12 Months, Fair Value	2,809
Less than 12 Months, Unrealized Losses	(93)
12 Months or Longer, Fair Value	0
12 Months or Longer, Unrealized Losses	0
Fair Value, Total	2,809
Unrealized Losses, Total	$ (93)