Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net income (loss) – basic and diluted	$ 8,248	$ (54,726)
Shares used in computing net income (loss) per share
Weighted-average common shares outstanding - basic (in shares)	21,512	18,585
Effect of dilutive securities (in shares)	18	0
Weighted-average common shares outstanding - diluted (in shares)	21,530	18,585
Earnings (loss) per common share
Earnings (loss) per share — basic (in dollars per share)	$ 0.38	$ (2.94)
Earnings (loss) per share — diluted (in dollars per share)	$ 0.38	$ (2.94)
Antidilutive shares (in shares)	1,400	3,900