Net Income (Loss) Per Common Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Potentially Dilutive Securities

Outstanding securities, and the number of potentially dilutive common shares underlying such securities, were as follows:

	March 31,
	2014		2013
Stock options		6,503		6,898
Convertible Notes		5,050		5,050
Restricted stock units		532		383
Stock appreciation rights		506		427
Warrants		20		46
Total		12,611		12,804