Investments (Major Categories of Investment Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	$ 957	$ 1,059	$ 1,923	$ 2,106
Less: Investment expenses	27	30	67	86
Net investment income	930	1,029	1,856	2,020
Fixed maturities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	841	948	1,658	1,849
Equity securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	24	26	48	54
Mortgage loans on real estate
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	3	6	5	7
Investment real estate
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	0	2	2	4
Policy loans
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	33	32	66	64
Company owned life insurance change in surrender value
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	14	19	57	53
Other
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gross investment income	$ 42	$ 26	$ 87	$ 75