Income Taxes Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Deferred Tax Asset, Operating and Capital Loss Carryforwards and Credits	$ 90,871	$ 83,323
Stock compensation	2,635	2,416
Deferred tax assets intangibles and fixed assets	6,197	14,343
Basis of investments in affiliates	984	2,195
Accrued liabilities and other	167	422
Deferred Tax Assets, State Taxes	35	90
Total deferred tax assets	100,889	102,789
Deferred tax liabilities:
Fixed assets and intangibles	(10,587)	0
Other	(24)	(162)
Deferred Tax Liabilities, Gross	(10,611)	(162)
Net deferred tax liabilities	0	0
Less: valuation allowance	(90,278)	(102,627)
Net deferred taxes	$ 10,611	$ 162