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Earnings Per Share - Schedule of Computation of Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income (loss)	$ 643	$ (2,525)	$ 1,001	$ (6,105)
Weighted-average shares outstanding:
Weighted-average common stock outstanding	19,268	18,837	19,235	18,660
Common stock equivalents	542		551
Weighted-average number of shares	19,810	18,837	19,786	18,660
Diluted earnings per share	$ 0.03	$ (0.13)	$ 0.05	$ (0.33)

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