Net Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Potentially Dilutive Securities Excluded from Computation of Diluted Weighted Average Shares

The potential dilutive effect of these securities is shown in the chart below:

	As of June 30,
(in thousands)	2015		2014
Options to purchase common stock		19,426		21,245
Common stock warrants		377		2,407
Conversion premium on the Notes		25,000		25,000