REVENUE - Summary of Revenue Disaggregated by Types and Geography (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 22,149	$ 15,030	$ 41,025	$ 30,555
Product
Disaggregation Of Revenue [Line Items]
Total revenue	16,457	10,917	29,883	22,296
Service
Disaggregation Of Revenue [Line Items]
Total revenue	5,573	3,994	10,904	8,021
Distribution rights
Disaggregation Of Revenue [Line Items]
Total revenue	119	119	238	238
U.S.
Disaggregation Of Revenue [Line Items]
Total revenue	13,213	12,475	16,745	19,909
U.S. | Product
Disaggregation Of Revenue [Line Items]
Total revenue	10,030	10,140	10,462	15,207
U.S. | Service
Disaggregation Of Revenue [Line Items]
Total revenue	3,183	2,335	6,283	4,702
Outside of U.S. ("OUS")
Disaggregation Of Revenue [Line Items]
Total revenue	8,936	2,555	24,280	10,646
Outside of U.S. ("OUS") | Product
Disaggregation Of Revenue [Line Items]
Total revenue	6,427	777	19,421	7,089
Outside of U.S. ("OUS") | Service
Disaggregation Of Revenue [Line Items]
Total revenue	2,390	1,659	4,621	3,319
Outside of U.S. ("OUS") | Distribution rights
Disaggregation Of Revenue [Line Items]
Total revenue	$ 119	$ 119	$ 238	$ 238