Investments - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	$ 134,219	$ 135,370
Debt securities, Gross Unrealized Gain	75	50
Debt securities, Gross Unrealized Losses	(13,760)	(13,307)
Debt securities, Estimated Fair Value	120,534	122,113
U.S. Government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	5,702	5,405
Debt securities, Gross Unrealized Gain	0	3
Debt securities, Gross Unrealized Losses	(172)	(161)
Debt securities, Estimated Fair Value	5,530	5,247
State and local government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	23,961	24,274
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(3,799)	(3,810)
Debt securities, Estimated Fair Value	20,162	20,464
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	33,880	34,002
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(3,667)	(3,507)
Debt securities, Estimated Fair Value	30,213	30,495
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	37,813	38,289
Debt securities, Gross Unrealized Gain	75	47
Debt securities, Gross Unrealized Losses	(485)	(584)
Debt securities, Estimated Fair Value	37,403	37,752
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	26,320	26,768
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(5,044)	(4,641)
Debt securities, Estimated Fair Value	21,276	22,127
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	3,382	3,404
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(142)	(160)
Debt securities, Estimated Fair Value	3,240	3,244
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	3,161	3,228
Debt securities, Gross Unrealized Gain	0	0
Debt securities, Gross Unrealized Losses	(451)	(444)
Debt securities, Estimated Fair Value	$ 2,710	$ 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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Amortized cost of 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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