Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Potential Dilutive Shares Excluded from Computation of Diluted Net Loss Per Share

Such potentially dilutive shares of common stock at June 30, 2020 and 2019 consisted of the following:

	June 30,
	2020		2019
Stock options		6,561,513		5,077,591
Inducement stock options		863,333		500,000
Unvested restricted stock		1,354,306		1,554,579
Warrants		22,272,727		18,939,394
		31,051,879		26,071,564