Net Income (Loss) Per Common Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

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

Outstanding securities excluded from the calculation of diluted loss per share for the three and six months ended June 30, 2017 and 2016 are shown in the chart below:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2017		2016		2017		2016
Outstanding options to purchase common stock		18,915		21,647		18,915		21,647
Conversion of the Convertible Notes		12,158		12,158		12,158		12,158