Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]: Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	$ 138,131
Short Duration Insurance Insurance Contracts, Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	35,962
Short-duration Insurance Contracts, Discounted Liabilities, Aggregate Discount	11,707
Liability for Claims and Claims Adjustment Expense	168,683	$ 219,113	$ 245,443	$ 236,803
Other Short-duration Insurance Product Line
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	7,410
Short Duration Insurance Insurance Contracts, Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	6,168
Other Long-duration Insurance Product Line
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claim Adjustment Expense, Other Reconciling Item	6,297
Specialty Health Segment Member
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	51,710
Short Duration Insurance Insurance Contracts, Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,821
Group disability, life and DBL Segment Member | NY Short-Term Disability Product Line
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	6,579
Short Duration Insurance Insurance Contracts, Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,124
Group disability, life and DBL Segment Member | Group Disability Product Line
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	72,432
Short Duration Insurance Insurance Contracts, Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	26,849
Short-duration Insurance Contracts, Discounted Liabilities, Aggregate Discount	$ 11,707	$ 11,475