Total Net Revenue Based on Disaggregation Criteria (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 25,061	$ 22,162
Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	23,943	21,314
Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	1,118	848
Americas
Disaggregation Of Revenue [Line Items]
Total net revenue	16,891	15,148
Americas | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	15,898	14,396
Americas | Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	993	752
Europe and the Middle East
Disaggregation Of Revenue [Line Items]
Total net revenue	3,794	2,460
Europe and the Middle East | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	3,669	2,364
Europe and the Middle East | Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	125	96
Asia-Pacific
Disaggregation Of Revenue [Line Items]
Total net revenue	4,376	4,554
Asia-Pacific | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 4,376	$ 4,554