Net Loss Per Common Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Net Loss Per Common Share

4. Net Loss Per Common Share

The stock options are excluded from the calculation of diluted loss per share because the net loss for the years ended December 31, 2020 and 2019 causes such securities to be anti-dilutive. Securities excluded from the calculation of diluted loss per share are shown in the chart below:

	Years Ended December 31,
(in thousands)	2020		2019
Outstanding options to purchase common stock		1,862		1,924