Stockholders' Equity (Deficit) (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Reserved Common Stock for Future Issuances

At December 31, 2019 and 2018, the Company had reserved common stock for future issuances as follows:

	December 31,
	2019	2018
Conversion of Series A redeemable convertible preferred stock	—	1,629,629
Conversion of Series A-1 redeemable convertible preferred stock	—	1,111,111
Conversion of Series B redeemable convertible preferred stock	—	6,264,470
Conversion of Series C redeemable convertible preferred stock and warrants	—	15,064,405
Exercise of options under stock plan	4,310,790	4,364,377
Issuance of options under stock plan	1,554,690	57,889
Issuance of common stock under employee stock purchase plan	372,352	—
Warrants to purchase common stock	—	7,527
	6,237,832	28,499,408