Investments - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	$ 129,372	$ 150,732
Debt securities, Gross Unrealized Gain	0	898
Debt securities, Gross Unrealized Losses	(17,525)	(1,847)
Debt securities, Estimated Fair Value	111,847	149,783
U.S. Government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	7,830	20,723
Debt securities, Gross Unrealized Gain	0	74
Debt securities, Gross Unrealized Losses	(367)	(77)
Debt securities, Estimated Fair Value	7,463	20,720
State and local government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	25,661	30,063
Debt securities, Gross Unrealized Gain	0	555
Debt securities, Gross Unrealized Losses	(4,516)	(189)
Debt securities, Estimated Fair Value	21,145	30,429
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	35,544	30,808
Debt securities, Gross Unrealized Gain	0	88
Debt securities, Gross Unrealized Losses	(5,398)	(550)
Debt securities, Estimated Fair Value	30,146	30,346
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	22,896	28,652
Debt securities, Gross Unrealized Gain	0	10
Debt securities, Gross Unrealized Losses	(1,173)	(224)
Debt securities, Estimated Fair Value	21,723	28,438
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	29,772	33,178
Debt securities, Gross Unrealized Gain	0	105
Debt securities, Gross Unrealized Losses	(5,442)	(762)
Debt securities, Estimated Fair Value	24,330	32,521
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	3,418	1,659
Debt securities, Gross Unrealized Gain	0	31
Debt securities, Gross Unrealized Losses	(181)	0
Debt securities, Estimated Fair Value	3,237	1,690
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	4,251	5,649
Debt securities, Gross Unrealized Gain	0	35
Debt securities, Gross Unrealized Losses	(448)	(45)
Debt securities, Estimated Fair Value	$ 3,803	$ 5,639

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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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