Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of Shares Reserved for Future Issuance

The following shares were reserved for future issuance:

	December 31, 2020
Common stock options outstanding	4,429,489
Restricted stock units outstanding	465,260
Warrants to purchase common stock	8,229,632
Employee Stock Purchase Plan	128,436
Shares available for grant	1,708,448
Total	14,961,265

Schedule of Warrants Issued and Outstanding

As of December 31, 2020, the following warrants for common stock were issued and outstanding:

Issue date	Expiration date	Exercise price		Number of warrants outstanding
January 11, 2017	None	$	0.001	3,733,218
November 20, 2017	None	$	0.001	4,137,999
June 11, 2018	None	$	0.001	358,415
				8,229,632