NET LOSS PER COMMON SHARE - Anti-dilutive securities (Details) - shares	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
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	4,925,678	4,542,353
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	533,114	222,693
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	38,375,618	125,618