PROPERTY AND EQUIPMENT, NET - Schedule of Property and equipment, net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 5,521	$ 5,163
Less: Accumulated depreciation and amortization	(1,644)	(1,410)
Property and equipment, net	3,877	3,753
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,028	989
Research Devices
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,643	1,422
Sales and Marketing Devices
Property Plant And Equipment [Line Items]
Property and equipment, gross	669	669
Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	617	575
Construction In Progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	347	341
Tooling
Property Plant And Equipment [Line Items]
Property and equipment, gross	317	302
Trade Show Assets
Property Plant And Equipment [Line Items]
Property and equipment, gross	271	293
Leased Devices
Property Plant And Equipment [Line Items]
Property and equipment, gross	453	396
Other
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 176	$ 176

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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