STOCK-BASED COMPENSATION - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Stock-based compensation
Total stock-based compensation expense	$ 5,837	$ 7,347	$ 2,017
Unrecognized compensation cost	9,511
ESPP
Stock-based compensation
Total stock-based compensation expense	26	43	47
Employee Stock Option
Stock-based compensation
Total stock-based compensation expense	1,980	3,057	490
Unrecognized compensation cost	$ 4,861
Weighted-Average Amortization Period (Years)	2 years 10 months 24 days
RSUs
Stock-based compensation
Total stock-based compensation expense	$ 3,663	4,053	1,280
Unrecognized compensation cost	$ 4,430
Weighted-Average Amortization Period (Years)	2 years 4 months 24 days
RSAs
Stock-based compensation
Total stock-based compensation expense	$ 168	194	200
Unrecognized compensation cost	$ 220
Weighted-Average Amortization Period (Years)	1 year 10 months 24 days
Selling, general and administrative
Stock-based compensation
Total stock-based compensation expense	$ 4,645	5,305	2,017
Research and development
Stock-based compensation
Total stock-based compensation expense	$ 1,192	$ 2,042	$ 0