Fair Value of Financial Assets and Financial Liabilities (Fair Value of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Insurance Claims [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	$ 1,629	$ 1,561
Estimated Fair Value, Liabilities	1,629	1,561
Short-term Debt [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	1,800	857
Estimated Fair Value, Liabilities	1,800	857
Long-term Debt [Member]
Liabilities and Related Instruments [Abstract]
Carrying Value, Liabilities	15,326	17,100
Estimated Fair Value, Liabilities	15,326	17,100
Held-to-maturity Securities [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	1,890	2,439
Estimated Fair Value, Assets	1,930	2,504
Mortgage Loans on Real Estate [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	174	202
Estimated Fair Value, Assets	174	202
Policy Loans [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	1,708	1,655
Estimated Fair Value, Assets	1,708	1,655
Cash Surrender Value [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	4,864	4,898
Estimated Fair Value, Assets	4,864	4,898
Other Long-term Investments [Member]
Assets and Related Instruments [Abstract]
Carrying Value, Assets	2,958	3,256
Estimated Fair Value, Assets	$ 2,958	$ 3,256