Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Calculation of Diluted Net Loss per Share Attributable to Common Stockholders

The following common stock equivalents were excluded from the calculation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Outstanding stock options		4,674,037		2,809,596		4,674,037		2,809,596
Unvested restricted stock awards		47,123		229,076		47,123		229,076
Total		4,721,160		3,038,672		4,721,160		3,038,672