Income Taxes - Income Tax (Expense) Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current (expense) benefit:
State	$ (68)	$ (53)
International	(10)	6
Deferred (expense) benefit:
Federal	33	(45)
State	(16)	(17)
International		14
Total income tax expense	$ (61)	$ (95)