Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Schedule of convertible preferred stock by class

At March 31, 2020, the Company has reserved shares of common stock for future issuance as follows:

Stock option plans	5,050,000
Common stock warrants	15,641
Total	5,065,641

Schedule of stockholders' equity note, warrants or rights

At March 31, 2020, the following warrants to purchase common stock were outstanding:

Number of Shares	Exercise Price	Expiration Date
6,046	$34.74	November 2020
6,046	$34.74	5 years after an initial public offering of the Company
3,369	$54.41	5 years after an initial public offering of the Company
15,461