Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Anti-Dilutive Securities Excluded from Net Loss per Share

The following items were excluded in the net loss per share calculation for the three months ended March 31, 2016 and 2015 because the inclusion of such items would have had an anti-dilutive effect:

	Three Months Ended
	March 31,
	2016		2015
Stock Options		2,168,917		1,913,263
Restricted stock units		48,745		79,588
Warrants to purchase common stock		5,688,278		5,918,943
Convertible debt		4,422,222		5,382,363