Schedule I. Summary of Investments Other Than Investments in Related Parties (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	$ 110,052	$ 109,762
Summary of Investments, Other than Investments in Related Parties, Fair Value	113,196	112,622
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	113,156	112,557
Securities (Assets) [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	97,070	96,936
Summary of Investments, Other than Investments in Related Parties, Fair Value	99,665	99,213
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	99,625	99,148
Held-to-maturity Securities [Member] | US Treasury Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	27	44
Summary of Investments, Other than Investments in Related Parties, Fair Value	29	47
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	27	44
Held-to-maturity Securities [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	1,863	2,395
Summary of Investments, Other than Investments in Related Parties, Fair Value	1,901	2,457
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	1,863	2,395
Held-to-maturity Securities [Member] | Debt Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	1,890	2,439
Summary of Investments, Other than Investments in Related Parties, Fair Value	1,930	2,504
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	1,890	2,439
Available-for-sale Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	95,180	94,497
Summary of Investments, Other than Investments in Related Parties, Fair Value	97,735	96,709
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	97,735	96,709
Available-for-sale Securities [Member] | US Treasury Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	18,618	17,825
Summary of Investments, Other than Investments in Related Parties, Fair Value	18,518	18,142
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	18,518	18,142
Available-for-sale Securities [Member] | US States and Political Subdivisions Debt Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	14,806	14,654
Summary of Investments, Other than Investments in Related Parties, Fair Value	15,166	15,476
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	15,166	15,476
Available-for-sale Securities [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	10,970	15,324
Summary of Investments, Other than Investments in Related Parties, Fair Value	10,931	15,257
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	10,931	15,257
Available-for-sale Securities [Member] | Private Label Asset Backed Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	7,910	6,029
Summary of Investments, Other than Investments in Related Parties, Fair Value	7,774	5,673
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	7,774	5,673
Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	40,533	38,245
Summary of Investments, Other than Investments in Related Parties, Fair Value	40,403	37,264
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	40,403	37,264
Available-for-sale Securities [Member] | Banks, Trust and Insurance, Equities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	1,363	1,363
Summary of Investments, Other than Investments in Related Parties, Fair Value	1,991	1,767
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	1,991	1,767
Available-for-sale Securities [Member] | Industrial, Miscellaneous, and All Others [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	980	1,057
Summary of Investments, Other than Investments in Related Parties, Fair Value	2,952	3,130
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	2,952	3,130
Available-for-sale Securities [Member] | Equity Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	2,343	2,420
Summary of Investments, Other than Investments in Related Parties, Fair Value	4,943	4,897
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	4,943	4,897
Available-for-sale Securities [Member] | Debt Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	92,837	92,077
Summary of Investments, Other than Investments in Related Parties, Fair Value	92,792	91,812
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	92,792	91,812
Trading Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	107	107
Summary of Investments, Other than Investments in Related Parties, Fair Value	107	107
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	107	107
Mortgage Loans on Real Estate [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	174	202
Summary of Investments, Other than Investments in Related Parties, Fair Value	174	202
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	174	202
Investment Real Estate [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	3,221	3,291
Summary of Investments, Other than Investments in Related Parties, Fair Value	3,221	3,291
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	3,221	3,291
Policy Loans [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	1,708	1,655
Summary of Investments, Other than Investments in Related Parties, Fair Value	1,708	1,655
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	1,708	1,655
Company Owned Life Insurance [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	4,315	4,315
Summary of Investments, Other than Investments in Related Parties, Fair Value	4,864	4,898
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	4,864	4,898
Other Investments [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Summary of Investments, Other than Investments in Related Parties, Cost	3,457	3,256
Summary of Investments, Other than Investments in Related Parties, Fair Value	3,457	3,256
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	$ 3,457	$ 3,256