Income Taxes Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Deferred Tax Asset, Operating and Capital Loss Carryforwards and Credits	$ 104,862	$ 90,871
Deferred Tax Assets, Unrealized Loss on Investment	2,455	0
Stock compensation	1,365	2,635
Deferred tax assets intangibles and fixed assets	3,330	6,197
Basis of investments in affiliates	286	984
Accrued liabilities and other	208	167
Deferred Tax Assets, State Taxes	26	35
Total deferred tax assets	112,532	100,889
Deferred tax liabilities:
Fixed assets and intangibles	0	(10,587)
Other	(18)	(24)
Deferred Tax Liabilities, Gross	(18)	(10,611)
Net deferred tax liabilities	18	0
Less: valuation allowance	(112,532)	(90,278)
Net deferred taxes	$ 0	$ 10,611