Investments, Aggregated by Type and Industry (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Investments aggregated by type and industry [Abstract]
Estimated fair value	$ 208,472	$ 208,729
Allowance for credit losses	0	0
Amortized cost total	235,013	236,766
Estimated fair value	9,679	11,562
Cost	4,905	4,907
Amortized cost of bonds on deposit with insurance regulatory authorities	11,766	12,333
Bonds Pledged as Collateral [Member] | FHLB Advances [Member]
Investments aggregated by type and industry [Abstract]
Amortized cost pledged as collateral to FHLB	7,548	7,221
Fixed Maturities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	208,472	208,729
Gross unrealized gains	775	753
Gross unrealized losses	27,316	28,790
Allowance for credit losses	0
Amortized cost total	235,013	236,766
U.S. Treasury Securities and Obligations of U.S. Government Agencies and Authorities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	48,880	44,412
Gross unrealized gains	1	5
Gross unrealized losses	5,948	5,926
Allowance for credit losses	0
Amortized cost total	54,827	50,333
Obligations of States and Political Subdivisions [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	8,148	9,187
Gross unrealized gains	0	4
Gross unrealized losses	1,370	1,702
Allowance for credit losses	0
Amortized cost total	9,518	10,885
Corporate Securities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	151,217	154,907
Gross unrealized gains	740	713
Gross unrealized losses	19,998	21,162
Allowance for credit losses	0
Amortized cost total	170,475	175,356
Corporate Securities [Member] | Utilities and Telecom [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	20,195	22,090
Gross unrealized gains	86	120
Gross unrealized losses	3,146	3,299
Allowance for credit losses	0
Amortized cost total	23,255	25,269
Corporate Securities [Member] | Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	57,242	59,054
Gross unrealized gains	439	397
Gross unrealized losses	6,948	7,085
Allowance for credit losses	0
Amortized cost total	63,751	65,742
Corporate Securities [Member] | Other Business - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	31,871	31,058
Gross unrealized gains	173	161
Gross unrealized losses	4,107	4,689
Allowance for credit losses	0
Amortized cost total	35,805	35,586
Corporate Securities [Member] | Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	41,909	42,705
Gross unrealized gains	42	35
Gross unrealized losses	5,797	6,089
Allowance for credit losses	0
Amortized cost total	47,664	48,759
Redeemable Preferred Stocks [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	227	223
Gross unrealized gains	34	31
Gross unrealized losses	0	0
Allowance for credit losses	0
Amortized cost total	193
Redeemable Preferred Stocks [Member] | Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	227	223
Gross unrealized gains	34	31
Gross unrealized losses	0	0
Allowance for credit losses	0
Amortized cost total	193	192
Equity Securities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	9,679	11,562
Gross unrealized gains	4,774	6,655
Gross unrealized losses	0	0
Cost	4,905	4,907
Common and Non-redeemable Preferred Stocks [Member] | Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	842	790
Gross unrealized gains	570	516
Gross unrealized losses	0	0
Cost	272	274
Common and Non-redeemable Preferred Stocks [Member] | Other Business - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	8,837	10,772
Gross unrealized gains	4,204	6,139
Gross unrealized losses	0	0
Cost	$ 4,633	$ 4,633