Income Taxes Deferred Tax Asset/Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Net [Abstract]
Net operating loss available for carry-back and carry-forward	$ 9,604	$ 0
Net capital loss carry-forward	4,158	1,981
Investments	1,948	4,504
Deferred tax asset	15,710	6,485
Allowance	(15,303)	(6,485)
Net deferred tax asset	407	0
Deferred Tax Liabilities, Net [Abstract]
Net operating loss available for carry-back and carry-forward	85	0
Net deferred tax liability	$ 85	$ 0