Fair Value of Financial Assets and Financial Liabilities (Fair Value of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Insurance Claims [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	$ 1,651	$ 1,629
Estimated Fair Value, Liabilities	1,651	1,629
Short-term Debt [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	1,300	1,800
Estimated Fair Value, Liabilities	1,300	1,800
Long-term Debt [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	15,329	15,326
Estimated Fair Value, Liabilities	15,329	15,326
Held-to-maturity Securities [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	1,802	1,890
Estimated Fair Value, Assets	1,835	1,930
Mortgage Loans on Real Estate [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	165	174
Estimated Fair Value, Assets	165	174
Policy Loans [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	1,730	1,708
Estimated Fair Value, Assets	1,730	1,708
Cash Surrender Value [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	4,906	4,864
Estimated Fair Value, Assets	4,906	4,864
Other Long-term Investments [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	2,877	2,958
Estimated Fair Value, Assets	$ 2,877	$ 2,958