Total Net Revenue Based on Disaggregation Criteria (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 30,996	$ 29,097	$ 83,914	$ 75,252
Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	30,320	28,158	80,970	72,544
Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	676	939	2,944	2,708
Americas
Disaggregation Of Revenue [Line Items]
Total net revenue	20,951	19,667	55,480	49,023
Americas | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	20,412	18,820	52,898	46,598
Americas | Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	539	847	2,582	2,425
Europe and the Middle East
Disaggregation Of Revenue [Line Items]
Total net revenue	3,651	3,223	11,473	9,309
Europe and the Middle East | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	3,544	3,131	11,141	9,026
Europe and the Middle East | Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	107	92	332	283
Asia-Pacific
Disaggregation Of Revenue [Line Items]
Total net revenue	6,394	6,207	16,961	16,920
Asia-Pacific | Point-in-Time
Disaggregation Of Revenue [Line Items]
Total net revenue	6,364	$ 6,207	16,931	$ 16,920
Asia-Pacific | Over Time
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 30		$ 30