Income Tax Disclosure [Text Block] (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%		35.00%
Effective Income Tax Rate Reconciliation, Newly Enacted Federal Statutory Income Tax Rate, Fiscal Year Blended Rate, Percent			28.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		$ 1,190		$ 9,402
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Income Tax Expense (Benefit)				9,402
Effective Income Tax Rate Reconciliation, Subsidiary Stock Basis Write Off		0		11,589
Deferred Tax Assets, Net		12,629		15,645
Income Taxes Paid, Net		1,303		397
AMIC | Domestic Tax Authority
Operating Loss Carryforwards	[1]	124,514
IHC Administrative Services Inc.Member
Effective Income Tax Rate Reconciliation, Subsidiary Stock Basis Write Off				11,589
Income Tax Deduction On Subsidiary Stock Basis Write Off				33,110
AMICSubsidiariesMember
Deferred Tax Assets, Net		$ 14,191		18,602
ValuationAllowance Deferred Tax Asset Change In Amount Due To Change In Projected NOL Utilization				(20,261)
ValuationAllowance Deferred Tax Asset Change In Amount Due To Change In Enacted Tax Rate				$ (6,263)

[1] Which expire in varying amounts through 2034, a significant portion expires in 2020.