NET (LOSS) INCOME PER SHARE OF COMMON STOCK - Securities Excluded from Calculation of Weighted Average Shares Outstanding as their Effect is Antidilutive (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Common Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities outstanding excluded from the calculation of weighted average shares outstanding	1,794,467	9,347,054	1,794,467	6,357,500
Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities outstanding excluded from the calculation of weighted average shares outstanding		48,650		48,650
Performance Based Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities outstanding excluded from the calculation of weighted average shares outstanding	3,651,403		3,651,403
Common Stock Warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities outstanding excluded from the calculation of weighted average shares outstanding	40,790	40,790	40,790	40,790