Investments, Aggregated by Type and Industry (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Securities Issuer	Dec. 31, 2016 USD ($) Securities
Investments aggregated by type and industry [Abstract]
Carrying value	$ 215,108	$ 210,670
Gross unrealized gains	6,485	5,706
Gross unrealized losses	3,921	5,541
Cost or amortized cost	212,544	210,505
Carrying value	23,355	20,257
Gross unrealized gains	12,437	8,804
Gross unrealized losses	0	0
Cost or amortized cost	10,918	11,453
Other invested assets	5,626	9,709
Other invested assets, cost or amortized cost	5,626	9,709
Policy loans	2,146	2,265
Policy loans, cost or amortized cost	2,146	2,265
Real estate	38	38
Real estate, cost or amortized cost	38	38
Investment in unconsolidated trusts	1,238	1,238
Investment in unconsolidated trusts, cost or amortized cost	1,238	1,238
Total investments	247,511	244,177
Total investments, gross unrealized gains	18,922	14,510
Total investments, gross unrealized losses	3,921	5,541
Total investments, cost or amortized cost	232,510	235,208
Amortized cost of bonds on deposit with insurance regulatory authorities	$ 11,178	$ 11,435
Number of securities in unrealized loss position | Securities	69	77
Oil and Gas Properties [Member]
Investments aggregated by type and industry [Abstract]
Gross unrealized losses	$ 906
Fixed maturity investments, number of issuers | Issuer	4
Fixed Maturities - U.S. Treasury Securities and Obligations of U.S. Government Agencies and Authorities [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	$ 31,155	$ 31,102
Gross unrealized gains	149	197
Gross unrealized losses	511	553
Cost or amortized cost	31,517	31,458
Fixed Maturities - Obligations of States and Political Subdivisions [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	10,809	17,572
Gross unrealized gains	630	625
Gross unrealized losses	1	308
Cost or amortized cost	10,180	17,255
Fixed Maturities - Corporate Securities [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	172,952	161,804
Gross unrealized gains	5,706	4,884
Gross unrealized losses	3,409	4,680
Cost or amortized cost	170,655	161,600
Fixed Maturities - Utilities and Telecom [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	21,882	18,034
Gross unrealized gains	1,709	1,462
Gross unrealized losses	130	88
Cost or amortized cost	20,303	16,660
Fixed Maturities - Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	53,686	57,282
Gross unrealized gains	2,049	1,880
Gross unrealized losses	453	911
Cost or amortized cost	52,090	56,313
Fixed Maturities - Other Business - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	44,184	57,419
Gross unrealized gains	1,024	1,071
Gross unrealized losses	1,349	2,337
Cost or amortized cost	44,509	58,685
Fixed Maturities - Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	53,200	29,069
Gross unrealized gains	924	471
Gross unrealized losses	1,477	1,344
Cost or amortized cost	53,753	29,942
Fixed Maturities - Redeemable Preferred Stocks [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	192	192
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Cost or amortized cost	192	192
Fixed Maturities - Other Consumer Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	192	192
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Cost or amortized cost	192	192
Equity Securities - Utilities and Telecom [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	1,588	1,601
Gross unrealized gains	624	637
Gross unrealized losses	0	0
Cost or amortized cost	964	964
Equity Securities - Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	5,634	5,402
Gross unrealized gains	851	574
Gross unrealized losses	0	0
Cost or amortized cost	4,783	4,828
Equity Securities - Other Business Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	297	244
Gross unrealized gains	250	197
Gross unrealized losses	0	0
Cost or amortized cost	47	47
Equity Securities - Other Consumer Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	15,836	13,010
Gross unrealized gains	10,712	7,396
Gross unrealized losses	0	0
Cost or amortized cost	$ 5,124	$ 5,614