Investments - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	$ 125,257	$ 135,370
Debt securities, Gross Unrealized Gain	116	50
Debt securities, Gross Unrealized Losses	(10,212)	(13,307)
Debt securities, Estimated Fair Value	115,161	122,113
U.S. Government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	5,393	5,405
Debt securities, Gross Unrealized Gain	24	3
Debt securities, Gross Unrealized Losses	(73)	(161)
Debt securities, Estimated Fair Value	5,344	5,247
State and local government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	23,014	24,274
Debt securities, Gross Unrealized Gain	6	0
Debt securities, Gross Unrealized Losses	(3,096)	(3,810)
Debt securities, Estimated Fair Value	19,924	20,464
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	33,686	34,002
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(2,499)	(3,507)
Debt securities, Estimated Fair Value	31,187	30,495
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	32,757	38,289
Debt securities, Gross Unrealized Gain	86	47
Debt securities, Gross Unrealized Losses	(165)	(584)
Debt securities, Estimated Fair Value	32,678	37,752
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	25,178	26,768
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(4,002)	(4,641)
Debt securities, Estimated Fair Value	21,176	22,127
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	2,284	3,404
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(66)	(160)
Debt securities, Estimated Fair Value	2,218	3,244
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	2,945	3,228
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(311)	(444)
Debt securities, Estimated Fair Value	$ 2,634	$ 2,784

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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