REVENUE RECOGNITION - Summary of Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Total revenue	$ 2,330	$ 2,348	$ 8,346	$ 5,390
Device
Disaggregation Of Revenue [Line Items]
Total revenue	1,728	1,945	6,670	4,305
Device | Point In Time
Disaggregation Of Revenue [Line Items]
Total revenue	1,728	1,945	6,670	4,305
Service
Disaggregation Of Revenue [Line Items]
Total revenue	602	403	1,676	1,085
Service | Over Time
Disaggregation Of Revenue [Line Items]
Total revenue	$ 602	$ 403	$ 1,676	$ 1,085