Loss Per Share (Details)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Warrants
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	5,430,137	5,828,796
Series E Preferred Stock, Common stock equivalents
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	0	336,812
Stock Options [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	2,647,437	2,198,460
Restricted Stock [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	73,500	14,250