Fair Value of Financial Instruments (Schedule of Assumptions Used in Calculating the Fair Value of Warrants) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Annual rate of quarterly dividend (as a percent)	0.00%	0.00%
Expected volatility (as a percent)	90.00%	100.00%
Risk free interest rate (as a percent)	1.03%	1.10%
Expected remaining term (in years)	2 years 10 months 28 days
Minimum
Expected remaining term (in years)		1 year 1 month 28 days
Maximum
Expected remaining term (in years)		3 years 7 months 28 days