Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potentially dilutive securities include the following:

	December 31,
	2018	2017
	(in thousands)
Options to purchase Common Stock	3,527	2,863
Warrants to purchase Common Stock	49	49
Total	3,576	2,912