Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net loss	$ (17,742)	$ (2,998)	$ (18,454)	$ (5,584)
Shares used in computing net loss per share:
Weighted average basic shares outstanding - basic (in shares)	22,858,000	21,702,000	22,858,000	20,171,000
Effect of dilutive securities (in shares)	0	0	0	0
Weighted average common shares outstanding - diluted (in shares)	22,858,000	21,702,000	22,858,000	20,171,000
Loss per common share:
Loss per share of common stock — basic (in dollars per share)	$ (0.78)	$ (0.14)	$ (0.81)	$ (0.28)
Loss per share of common stock — diluted (in dollars per share)	$ (0.78)	$ (0.14)	$ (0.81)	$ (0.28)
Antidilutive shares (in shares)	200,000	1,100,000	200,000	2,700,000
SARs
Loss per common share:
Antidilutive shares (in shares)	0	0		0
Restricted Stock Awards
Loss per common share:
Antidilutive shares (in shares)	0	0	0	0