Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Schedule of Shares Reserved for Future Issuance

The following shares were reserved for future issuance:

	December 31, 2021
Common stock options outstanding	4,532,252
Restricted stock units outstanding	1,002,178
Warrants to purchase common stock	7,605,811
Employee Stock Purchase Plan	107,764
Shares available for grant	2,743,693
Total	15,991,698

Schedule of Warrants Issued and Outstanding

As of December 31, 2021, 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	3,578,036
November 20, 2017	None	$	0.001	3,669,360
June 11, 2018	None	$	0.001	358,415
				7,605,811