Investments, Aggregated by Type and Industry (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Investments aggregated by type and industry [Abstract]
Estimated fair value	$ 218,219	$ 208,729
Allowance for credit losses	0	0
Amortized cost total	238,626	236,766
Estimated fair value	9,413	11,562
Cost	4,936	4,907
Amortized cost of bonds on deposit with insurance regulatory authorities	14,647	12,333
Bonds Pledged as Collateral [Member] | FHLB Advances [Member]
Investments aggregated by type and industry [Abstract]
Amortized cost pledged as collateral to FHLB	9,584	7,221
Fixed Maturities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	218,219	208,729
Gross unrealized gains	1,284	753
Gross unrealized losses	21,691	28,790
Allowance for credit losses	0
Amortized cost total	238,626	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	50,059	44,412
Gross unrealized gains	63	5
Gross unrealized losses	4,944	5,926
Allowance for credit losses	0
Amortized cost total	54,940	50,333
Obligations of States and Political Subdivisions [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	8,106	9,187
Gross unrealized gains	15	4
Gross unrealized losses	1,424	1,702
Allowance for credit losses	0
Amortized cost total	9,515	10,885
Corporate Securities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	159,849	154,907
Gross unrealized gains	1,193	713
Gross unrealized losses	15,323	21,162
Allowance for credit losses	0
Amortized cost total	173,979	175,356
Corporate Securities [Member] | Utilities and Telecom [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	21,309	22,090
Gross unrealized gains	143	120
Gross unrealized losses	2,582	3,299
Allowance for credit losses	0
Amortized cost total	23,748	25,269
Corporate Securities [Member] | Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	59,584	59,054
Gross unrealized gains	560	397
Gross unrealized losses	4,931	7,085
Allowance for credit losses	0
Amortized cost total	63,955	65,742
Corporate Securities [Member] | Other Business - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	34,386	31,058
Gross unrealized gains	403	161
Gross unrealized losses	2,940	4,689
Allowance for credit losses	0
Amortized cost total	36,923	35,586
Corporate Securities [Member] | Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	44,570	42,705
Gross unrealized gains	87	35
Gross unrealized losses	4,870	6,089
Allowance for credit losses	0
Amortized cost total	49,353	48,759
Redeemable Preferred Stocks [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	205	223
Gross unrealized gains	13	31
Gross unrealized losses	0	0
Allowance for credit losses	0
Amortized cost total	192	192
Redeemable Preferred Stocks [Member] | Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	205	223
Gross unrealized gains	13	31
Gross unrealized losses	0	0
Allowance for credit losses	0
Amortized cost total	192	192
Equity Securities [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	9,413	11,562
Gross unrealized gains	4,477	6,655
Gross unrealized losses	0	0
Cost	4,936	4,907
Common and Non-redeemable Preferred Stocks [Member] | Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	924	790
Gross unrealized gains	621	516
Gross unrealized losses	0	0
Cost	303	274
Common and Non-redeemable Preferred Stocks [Member] | Communications [Member]
Investments aggregated by type and industry [Abstract]
Estimated fair value	8,489	10,772
Gross unrealized gains	3,856	6,139
Gross unrealized losses	0	0
Cost	$ 4,633	$ 4,633