Loss Per Share - Reconciliations of Basic and Diluted Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net loss	$ (11,041)	$ (8,003)
Denominator:
Weighted average common shares outstanding (in shares)	6,608	2,096
Effect of dilutive securities:
Outstanding common stock equivalents (in shares)	0	0
Denominator for diluted loss per common share (in shares)	6,608	2,096
Basic and diluted earnings (loss) per common share:
Basic loss per common share (in dollars per share)	$ (1.67)	$ (3.82)
Diluted loss per common share (in dollars per shares)	$ (1.67)	$ (3.82)
Excluded outstanding share-based awards having an anti-dilutive effect (in shares)	1,407	1,600