Income Taxes Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Deferred Tax Asset, Operating and Capital Loss Carryforwards and Credits	$ 71,494	$ 59,427
Stock compensation	1,385	1,800
Deferred tax assets intangibles and fixed assets	1,359	0
Basis of investments in affiliates	499	1,437
Accrued liabilities and other	442	409
Unrealized loss on short-term investments	0	92
State taxes	81	26
Total deferred tax assets	75,260	63,191
Deferred tax liabilities:
Fixed assets and intangibles	0	(27,157)
Other	(81)	(107)
Deferred Tax Liabilities, Gross	(81)	(27,264)
Net deferred tax liabilities	0	0
Less: valuation allowance	(75,179)	(35,927)
Net deferred taxes	$ 81	$ 27,264