EQUITY INCENTIVE PLAN - Summary of Stock-Based Compensation Expenses by Function (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Employee Service Stock-based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 1,194	$ (2,354)	$ 3,453	$ 8,859
Cost of Sales
Employee Service Stock-based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	26	34	77	85
Research and Development
Employee Service Stock-based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	371	339	805	1,851
Sales and Marketing
Employee Service Stock-based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	44	79	139	291
General and Administrative
Employee Service Stock-based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 753	$ (2,806)	$ 2,432	$ 6,632