Restructuring - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring		$ 134
Proceeds from the Issuance of Common Stock and Warrants, Net of Issuance Costs	$ 2,300
Facility Closing [Member] | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring	$ (14)