Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of reserve for unissued shares of common stock

The number of shares of the Company’s common stock reserved for these purposes at December 31, 2019 is as follows:

	Number of Shares
Outstanding stock options	10,625,980
Outstanding restricted stock units	5,890,992
Outstanding common stock warrants	1,458,979
Additional shares available for grant under the equity plan	10,521,842
Total	28,497,793