Investments - Amortized Cost, Fair Value and Unrealized Gains and (Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Net Investment Income [Line Items]
Amortized Cost	$ 97,812	$ 67,880
Gross Unrealized, Gains	56	150
Gross Unrealized, Losses	(6,227)	(455)
Fair value	91,641	67,575
U.S. Treasuries
Net Investment Income [Line Items]
Amortized Cost	35,637	5,452
Gross Unrealized, Gains	5	1
Gross Unrealized, Losses	(320)	(36)
Fair value	35,322	5,417
Obligations of states, municipalities and political subdivisions
Net Investment Income [Line Items]
Amortized Cost	11,549	8,913
Gross Unrealized, Gains	2	21
Gross Unrealized, Losses	(1,326)	(84)
Fair value	10,225	8,850
Corporate bonds.
Net Investment Income [Line Items]
Amortized Cost	31,032	31,491
Gross Unrealized, Gains	32	89
Gross Unrealized, Losses	(2,837)	(155)
Fair value	28,227	31,425
Residential and commercial mortgage-backed securities
Net Investment Income [Line Items]
Amortized Cost	12,790	14,387
Gross Unrealized, Gains	11	34
Gross Unrealized, Losses	(1,268)	(139)
Fair value	11,533	14,282
Other loan-backed and structured securities
Net Investment Income [Line Items]
Amortized Cost	6,804	7,637
Gross Unrealized, Gains	6	5
Gross Unrealized, Losses	(476)	(41)
Fair value	$ 6,334	$ 7,601

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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Amount, before tax, of unrealized loss 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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Amount 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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