Fair Values of Financial Instruments, Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Fixed maturities	$ 202,303	$ 260,986
Equity securities	13,667	19,124
Recurring [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Fixed maturities	202,303	260,986
Equity securities	13,667	19,124
Cash equivalents	14,490	12,713
Assets at fair value	230,460	292,823
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Fixed maturities	0	250
Equity securities	13,510	18,967
Cash equivalents	14,490	12,713
Assets at fair value	28,000	31,930
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Fixed maturities	201,828	260,486
Equity securities	0	0
Cash equivalents	0	0
Assets at fair value	201,828	260,486
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Fixed maturities	475	250
Equity securities	157	157
Cash equivalents	0	0
Assets at fair value	$ 632	$ 407