Investments, Aggregated by Type and Industry (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($) Securities Issuer	Dec. 31, 2016 USD ($)
Investments aggregated by type and industry [Abstract]
Carrying value	$ 217,999	$ 210,670
Gross unrealized gains	6,533	5,706
Gross unrealized losses	3,775	5,541
Cost or amortized cost	215,241	210,505
Carrying value	21,582	20,257
Gross unrealized gains	10,664	8,804
Gross unrealized losses	0	0
Cost or amortized cost	10,918	11,453
Other invested assets	9,167	9,709
Other invested assets, cost or amortized cost	9,167	9,709
Policy loans	2,113	2,265
Policy loans, cost or amortized cost	2,113	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	252,137	244,177
Total investments, gross unrealized gains	17,197	14,510
Total investments, gross unrealized losses	3,775	5,541
Total investments, cost or amortized cost	238,715	235,208
Amortized cost of bonds on deposit with insurance regulatory authorities	$ 11,219	11,435
Number of securities in unrealized loss position | Securities	63
Oil and Gas Properties [Member]
Investments aggregated by type and industry [Abstract]
Gross unrealized losses	$ 1,006
Fixed maturity investments, number of issuers | Issuer	5
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	$ 32,426	31,102
Gross unrealized gains	189	197
Gross unrealized losses	414	553
Cost or amortized cost	32,651	31,458
Fixed Maturities - Obligations of States and Political Subdivisions [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	17,882	17,572
Gross unrealized gains	696	625
Gross unrealized losses	54	308
Cost or amortized cost	17,240	17,255
Fixed Maturities - Corporate Securities [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	167,499	161,804
Gross unrealized gains	5,648	4,884
Gross unrealized losses	3,307	4,680
Cost or amortized cost	165,158	161,600
Fixed Maturities - Utilities and Telecom [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	20,463	18,034
Gross unrealized gains	1,636	1,462
Gross unrealized losses	76	88
Cost or amortized cost	18,903	16,660
Fixed Maturities - Financial Services [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	51,927	57,282
Gross unrealized gains	2,161	1,880
Gross unrealized losses	411	911
Cost or amortized cost	50,177	56,313
Fixed Maturities - Other Business - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	41,339	57,419
Gross unrealized gains	941	1,071
Gross unrealized losses	1,499	2,337
Cost or amortized cost	41,897	58,685
Fixed Maturities - Other Consumer - Diversified [Member]
Investments aggregated by type and industry [Abstract]
Carrying value	53,770	29,069
Gross unrealized gains	910	471
Gross unrealized losses	1,321	1,344
Cost or amortized cost	54,181	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	1,484	1,601
Gross unrealized gains	520	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	5,579	5,402
Gross unrealized gains	796	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	275	244
Gross unrealized gains	228	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	14,244	13,010
Gross unrealized gains	9,120	7,396
Gross unrealized losses	0	0
Cost or amortized cost	$ 5,124	$ 5,614