Investments - Amortized Cost, Fair Value and Unrealized Gains and (Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Net Investment Income [Line Items]
Amortized Cost	$ 188,143	$ 143,036
Gross Unrealized, Gains	365	791
Gross Unrealized, Losses	(5,757)	(4,651)
Fair Value	182,751	139,176
U.S. Treasuries
Net Investment Income [Line Items]
Amortized Cost	27,489	43,931
Gross Unrealized, Gains	34	95
Gross Unrealized, Losses	(421)	(330)
Fair Value	27,102	43,696
Obligations of states, municipalities and political subdivisions
Net Investment Income [Line Items]
Amortized Cost	12,602	18,281
Gross Unrealized, Gains	26	100
Gross Unrealized, Losses	(756)	(961)
Fair Value	11,872	17,420
Corporate bonds
Net Investment Income [Line Items]
Amortized Cost	72,996	51,678
Gross Unrealized, Gains	192	430
Gross Unrealized, Losses	(2,292)	(2,067)
Fair Value	70,896	50,041
Residential and commercial mortgage-backed securities
Net Investment Income [Line Items]
Amortized Cost	62,721	25,452
Gross Unrealized, Gains	85	153
Gross Unrealized, Losses	(2,032)	(1,004)
Fair Value	60,774	24,601
Other loan-backed and structured securities
Net Investment Income [Line Items]
Amortized Cost	12,335	3,694
Gross Unrealized, Gains	28	13
Gross Unrealized, Losses	(256)	(289)
Fair Value	$ 12,107	$ 3,418