NET LOSS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Dilutive Securities Excluded from Calculation of Diluted Earnings Per Share

The following table sets forth securities outstanding that could potentially dilute the calculation of diluted earnings per share:

	Three Months Ended March 31,
	2021		2020
Stock options outstanding		8,096,905		10,412,952
Warrants to purchase common stock - liability classified		2,042,992		2,156,153
Warrants to purchase common stock - equity classified		1,418,116		1,457,856
Unvested restricted stock units		9,217,496		8,002,687
Total		20,775,509		22,029,648