Investments - Investments Aggregated by Type and Industry (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
U.S. Treasury Securities and Obligations of U.S. Government Agencies and Authorities [Member]
Investments [Abstract]
Estimated fair value	$ 23,952	$ 22,251
Gross unrealized gains	172	24
Gross unrealized losses	1,609	2,144
Allowance for credit losses	0	0
Amortized cost total	25,389	24,371
Loan Backed and Structured Securities [Member]
Investments [Abstract]
Estimated fair value	28,737	22,290
Gross unrealized gains	176	17
Gross unrealized losses	2,045	2,457
Allowance for credit losses	0	0
Amortized cost total	30,606	24,730
Obligations of States and Political Subdivisions [Member]
Investments [Abstract]
Estimated fair value	7,393	7,623
Gross unrealized gains	16	9
Gross unrealized losses	1,389	1,517
Allowance for credit losses	0	0
Amortized cost total	8,766	9,131
Corporate Securities [Member]
Investments [Abstract]
Estimated fair value	175,183	160,261
Gross unrealized gains	1,673	864
Gross unrealized losses	13,239	18,478
Allowance for credit losses	0	0
Amortized cost total	186,749	177,875
Corporate Securities [Member] | Utilities and Telecom [Member]
Investments [Abstract]
Estimated fair value	30,162	24,623
Gross unrealized gains	312	108
Gross unrealized losses	2,539	3,206
Allowance for credit losses	0	0
Amortized cost total	32,389	27,721
Corporate Securities [Member] | Financial Services [Member]
Investments [Abstract]
Estimated fair value	62,866	59,564
Gross unrealized gains	1,036	563
Gross unrealized losses	3,129	4,768
Allowance for credit losses	0	0
Amortized cost total	64,959	63,769
Corporate Securities [Member] | Other Business - Diversified [Member]
Investments [Abstract]
Estimated fair value	38,158	34,117
Gross unrealized gains	219	160
Gross unrealized losses	3,060	3,919
Allowance for credit losses	0	0
Amortized cost total	40,999	37,876
Corporate Securities [Member] | Other Consumer - Diversified [Member]
Investments [Abstract]
Estimated fair value	43,997	41,957
Gross unrealized gains	106	33
Gross unrealized losses	4,511	6,585
Allowance for credit losses	0	0
Amortized cost total	48,402	48,509
Redeemable Preferred Stocks [Member]
Investments [Abstract]
Estimated fair value	204	187
Gross unrealized gains	11	0
Gross unrealized losses	0	5
Allowance for credit losses	0	0
Amortized cost total	193	192
Redeemable Preferred Stocks [Member] | Other Consumer - Diversified [Member]
Investments [Abstract]
Estimated fair value	204	187
Gross unrealized gains	11	0
Gross unrealized losses	0	5
Allowance for credit losses	0	0
Amortized cost total	193	192
Fixed Maturities [Member]
Investments [Abstract]
Estimated fair value	235,469	212,612
Gross unrealized gains	2,048	914
Gross unrealized losses	18,282	24,601
Allowance for credit losses	0	0
Amortized cost total	251,703	236,299
Common and Non-redeemable Preferred Stocks [Member] | Financial Services [Member]
Investments [Abstract]
Estimated fair value	1,281	1,149
Gross unrealized gains	971	843
Gross unrealized losses	0	0
Cost	310	306
Common and Non-redeemable Preferred Stocks [Member] | Communications [Member]
Investments [Abstract]
Estimated fair value	9,151	6,751
Gross unrealized gains	4,518	2,118
Gross unrealized losses	0	0
Cost	4,633	4,633
Equity Securities [Member]
Investments [Abstract]
Estimated fair value	10,432	7,900
Gross unrealized gains	5,489	2,961
Gross unrealized losses	0	0
Cost	$ 4,943	$ 4,939