Net Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Outstanding Options Excluded from Computation of Diluted Loss Per Share

Outstanding options excluded from the calculation of diluted loss per share for the three and six months ended June 30, 2021 and 2020 are shown in the chart below:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Outstanding options to purchase common stock		1,778		1,877		1,778		1,877