Fair Value Measurements (Narrative) (Details) (USD $)	12 Months Ended						12 Months Ended	0 Months Ended				0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Common Stock Closes Above $15.00 [Member]	Aug. 31, 2013 Common Stock Closes Above $15.00 [Member]	Dec. 31, 2013 Common Stock Closes Above $20.00 [Member]	Aug. 31, 2013 Common Stock Closes Above $20.00 [Member]	Dec. 31, 2013 Black-Scholes Model Used to Value Warrants [Member]	May 10, 2012 Monte-Carlo Simulation Used To Value Derivative Assets And Liabilities [Member]	Dec. 31, 2013 Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 1 [Member]	Dec. 29, 2008 Fair Value, Inputs, Level 3 [Member]	Aug. 07, 2013 Exchange Warrants [Member] Monte-Carlo Simulation Used To Value Derivative Assets And Liabilities [Member]	Dec. 31, 2013 PIPE Warrants [Member]
Fair Value Measurements [Line Items]
Cash equivalents invested in money market funds	$ 11,995,481	$ 256,702							$ 11,995,481	$ 256,702
Issued warrants to purchase shares of common stock	3,021,302	6,099,476									179,241
Fair value of warrants issued							16,863
Dividend yield							0.00%
Volatility rate							112.66%	80.00%				111.00%	142.28%
Risk-free interest rate							0.78%	1.035%				1.46%	1.75%
Expected life							6 months
Closing stock price	$ 3.62							$ 3.413				$ 8.69	$ 3.62
Mandatory conversion percentage per Debentures agreement				50.00%		100.00%
Share price which determines conversion per Debentures agreement				15.00		20.00
Number of consecutive trading days required at stock price			20 days		20 days
Mandatory conversion minimum per Debentures agreement				$ 2,500,000		$ 2,500,000