STOCK-BASED COMPENSATION - Restricted Stock Units (Details) - RSUs $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Share-Based Compensation Awards
Stock-based compensation expenses | $	$ 696	$ 328
Restricted stock units issued and outstanding
Outstanding and expected to vest at beginning of period (in shares)	33,355
Granted (in shares)	389,898
Vested (in shares)	(10,766)
Forfeited (in shares)	(61,080)
Outstanding and expected to vest at end of period (in shares)	351,407	33,355
Weighted average grant price
Weighted average grant price, Outstanding and expected to vest, Beginning of period (in dollars per share) | $ / shares	$ 17.77
Weighted average grant price, Granted (in dollars per share) | $ / shares	4.84
Weighted average grant price, Vested (in dollars per share) | $ / shares	18.90
Weighted average grant price, Forfeited (in dollars per share) | $ / shares	8.12
Weighted average grant price, Outstanding and expected to vest, End of period (in dollars per share) | $ / shares	$ 5.06	$ 17.77
Unrecognized compensation | $	$ 1,338
Weighted average remaining vesting life	1 year 11 months 26 days	1 year 9 months 7 days
Continuing employees under retention program
Restricted stock units issued and outstanding
Granted (in shares)	362,400
Research and development expense
Share-Based Compensation Awards
Stock-based compensation expenses | $	$ 410	$ 289
Selling, general, and administrative
Share-Based Compensation Awards
Stock-based compensation expenses | $	$ 286	$ 39