Income Taxes Income Tax Expense (Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Current U.S. Federal	$ 0	$ 0	$ (8)
Current State	61	17	591
Current Foreign	(368)	(246)	(314)
Total current	(307)	(229)	269
Deferred U.S. Federal	0	0	0
Deferred State	(8)	8	11
Deferred Foreign	9	27	18
Total deferred	1	35	29
Income tax expense (benefit)	$ (306)	$ (194)	$ 298