NET LOSS PER COMMON SHARE - Anti-dilutive securities (Details) - shares	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Options to purchase common stock
Antidilutive securities excluded from computation of loss per share
Potential dilutive securities excluded from the computation of diluted net loss per share attributable to common stockholders	4,776,782	5,069,437
Restricted stock units
Antidilutive securities excluded from computation of loss per share
Potential dilutive securities excluded from the computation of diluted net loss per share attributable to common stockholders	3,580,135	576,569
Warrants to purchase common stock
Antidilutive securities excluded from computation of loss per share
Potential dilutive securities excluded from the computation of diluted net loss per share attributable to common stockholders	30,125,618	38,375,618