Earning (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net income (loss)	$ 1,358	$ (15,571)	$ (1,241)	$ (33,721)
Shares used in computing net income (loss) per share:
Weighted average basic shares outstanding - basic (in shares)	22,927	22,893	22,927	22,893
Effect of dilutive securities (in shares)	13	0	0	0
Weighted average common shares outstanding - diluted (in shares)	22,940	22,893	22,927	22,893
Earnings (Loss) per common share:
Earnings (Loss) per share of common stock – basic (in dollars per share)	$ 0.06	$ (0.68)	$ (0.05)	$ (1.47)
Earnings (Loss) per share of common stock – diluted (in dollars per share)	$ 0.06	$ (0.68)	$ (0.05)	$ (1.47)
Antidilutive shares (in shares)	100	200	200	200