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Investments, Aggregated by Type and Industry (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Investments aggregated by type and industry [Abstract]    
Estimated fair value $ 218,420 $ 218,219
Allowance for credit losses 0 0
Amortized cost total 241,315 238,626
Estimated fair value 9,303 9,413
Cost 4,940 4,936
Bonds Pledged as Collateral [Member] | FHLB Advances [Member]    
Investments aggregated by type and industry [Abstract]    
Amortized cost pledged as collateral to FHLB 9,498 9,584
Bonds [Member]    
Investments aggregated by type and industry [Abstract]    
Assets held with insurance regulatory authorities 14,676 14,647
Cash and Cash Equivalents [Member]    
Investments aggregated by type and industry [Abstract]    
Assets held with insurance regulatory authorities 226 226
Fixed Maturities [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 218,420 218,219
Gross unrealized gains 998 1,284
Gross unrealized losses 23,893 21,691
Allowance for credit losses 0 0
Amortized cost total 241,315 238,626
U.S. Treasury Securities and Obligations of U.S. Government Agencies and Authorities [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 49,277 50,059
Gross unrealized gains 53 63
Gross unrealized losses 5,119 4,944
Allowance for credit losses 0 0
Amortized cost total 54,343 54,940
Obligations of States and Political Subdivisions [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 8,133 8,106
Gross unrealized gains 9 15
Gross unrealized losses 1,388 1,424
Allowance for credit losses 0 0
Amortized cost total 9,512 9,515
Corporate Securities [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 160,783 159,849
Gross unrealized gains 902 1,193
Gross unrealized losses 17,386 15,323
Allowance for credit losses 0 0
Amortized cost total 177,267 173,979
Corporate Securities [Member] | Utilities and Telecom [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 21,854 21,309
Gross unrealized gains 80 143
Gross unrealized losses 2,939 2,582
Allowance for credit losses 0 0
Amortized cost total 24,713 23,748
Corporate Securities [Member] | Financial Services [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 60,733 59,584
Gross unrealized gains 549 560
Gross unrealized losses 5,175 4,931
Allowance for credit losses 0 0
Amortized cost total 65,359 63,955
Corporate Securities [Member] | Other Business - Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 34,105 34,386
Gross unrealized gains 242 403
Gross unrealized losses 3,541 2,940
Allowance for credit losses 0 0
Amortized cost total 37,404 36,923
Corporate Securities [Member] | Other Consumer - Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 44,091 44,570
Gross unrealized gains 31 87
Gross unrealized losses 5,731 4,870
Allowance for credit losses 0 0
Amortized cost total 49,791 49,353
Redeemable Preferred Stocks [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 227 205
Gross unrealized gains 34 13
Gross unrealized losses 0 0
Allowance for credit losses 0 0
Amortized cost total 193 192
Redeemable Preferred Stocks [Member] | Other Consumer - Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 227 205
Gross unrealized gains 34 13
Gross unrealized losses 0 0
Allowance for credit losses 0 0
Amortized cost total 193 192
Equity Securities [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 9,303 9,413
Gross unrealized gains 4,363 4,477
Gross unrealized losses 0 0
Cost 4,940 4,936
Common and Non-redeemable Preferred Stocks [Member] | Financial Services [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 1,054 924
Gross unrealized gains 747 621
Gross unrealized losses 0 0
Cost 307 303
Common and Non-redeemable Preferred Stocks [Member] | Communications [Member]    
Investments aggregated by type and industry [Abstract]    
Estimated fair value 8,249 8,489
Gross unrealized gains 3,616 3,856
Gross unrealized losses 0 0
Cost $ 4,633 $ 4,633