Summary of Investments, Other Than Investments in Related Parties: Summary of Investments-Other Than Investments in Related Parties Table Text Block (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Summary of Investments, Other than Investments in Related Parties, Cost	$ 651,047
Summary of Investments, Other than Investments in Related Parties, Fair Value	650,961
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	650,961
US Treasury and Government
Summary of Investments, Other than Investments in Related Parties, Cost	37,537
Summary of Investments, Other than Investments in Related Parties, Fair Value	37,617
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	37,617
US States and Political Subdivisions Debt Securities
Summary of Investments, Other than Investments in Related Parties, Cost	238,514
Summary of Investments, Other than Investments in Related Parties, Fair Value	239,381
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	239,381
Foreign Government Debt
Summary of Investments, Other than Investments in Related Parties, Cost	34,863
Summary of Investments, Other than Investments in Related Parties, Fair Value	34,700
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	34,700
Public Utility, Bonds
Summary of Investments, Other than Investments in Related Parties, Cost	42,977
Summary of Investments, Other than Investments in Related Parties, Fair Value	42,380
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	42,380
All Other Corporate Bonds
Summary of Investments, Other than Investments in Related Parties, Cost	227,233
Summary of Investments, Other than Investments in Related Parties, Fair Value	225,603
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	225,603
Mandatorily Redeemable Preferred Stock
Summary of Investments, Other than Investments in Related Parties, Cost	4,036
Summary of Investments, Other than Investments in Related Parties, Fair Value	4,199
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	4,199
Fixed Maturities
Summary of Investments, Other than Investments in Related Parties, Cost	585,160
Summary of Investments, Other than Investments in Related Parties, Fair Value	583,880
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	583,880
Public Utility, Equities
Summary of Investments, Other than Investments in Related Parties, Cost	868
Summary of Investments, Other than Investments in Related Parties, Fair Value	861
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	861
Banks, Trust and Insurance, Equities
Summary of Investments, Other than Investments in Related Parties, Cost	752
Summary of Investments, Other than Investments in Related Parties, Fair Value	764
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	764
Industrial, Miscellaneous, and All Others
Summary of Investments, Other than Investments in Related Parties, Cost	18,172
Summary of Investments, Other than Investments in Related Parties, Fair Value	19,227
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	19,227
Nonredeemable Preferred Stock
Summary of Investments, Other than Investments in Related Parties, Cost	4,004
Summary of Investments, Other than Investments in Related Parties, Fair Value	4,138
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	4,138
Equity Securities, Investment Summary
Summary of Investments, Other than Investments in Related Parties, Cost	23,796
Summary of Investments, Other than Investments in Related Parties, Fair Value	24,990
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	24,990
Policy Loans
Summary of Investments, Other than Investments in Related Parties, Cost	10,667
Summary of Investments, Other than Investments in Related Parties, Fair Value	10,667
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	10,667
Short-term Investments
Summary of Investments, Other than Investments in Related Parties, Cost	16,840
Summary of Investments, Other than Investments in Related Parties, Fair Value	16,840
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	16,840
Other Long-term Investments
Summary of Investments, Other than Investments in Related Parties, Cost	14,584
Summary of Investments, Other than Investments in Related Parties, Fair Value	14,584
Summary of Investments, Other than Investments in Related Parties, Carrying Amount	$ 14,584