Investments - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Due in one year or less	$ 25,920
Due after one year through five years	19,481
Due after five years through ten years	25,245
Due after ten years	4,843
Amortized Cost	98,806	$ 97,812
Fair Value
Due in one year or less	25,802
Due after one year through five years	17,895
Due after five years through ten years	23,099
Due after ten years	4,318
Fair value	92,730	91,641
Residential and commercial mortgage-backed securities
Amortized Cost
Without single maturity date	17,607
Amortized Cost	17,607	12,790
Fair Value
Without single maturity date	16,295
Fair value	16,295	11,533
Other loan-backed and structured securities
Amortized Cost
Without single maturity date	5,710
Amortized Cost	5,710	6,804
Fair Value
Without single maturity date	5,321
Fair value	$ 5,321	$ 6,334