Computation of Earnings per Share - Schedule of Net loss per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net (income) loss	$ 2,599	$ (1,289)	$ (1,278)	$ (1,579)	$ (1,542)	$ (1,448)	$ 31	$ (4,569)
Shares outstanding:
Weighted-average common shares outstanding (in shares)	21,725			21,532			21,674	21,508
Additional dilutive common stock equivalents (in shares)	73			0			59	0
Diluted shares outstanding (in shares)	21,798			21,532			21,733	21,508
Net income (loss) per share - basic	$ 0.12			$ (0.07)			$ 0.00	$ (0.21)
Net income (loss) per share - diluted	$ 0.12			$ (0.07)			$ 0.00	$ (0.21)