Net Loss Per Common Share (Anti-Dilutive Common Share Equivalents) (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents	13,040,243	12,976,175
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents	2,516,288	2,516,288
Restricted Stock Units and Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents	418,778	88,418
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents	10,105,177	10,371,469