Fair Value Measurements (Narrative) (Details) (USD $)	12 Months Ended					12 Months Ended	0 Months Ended	12 Months Ended
	Dec. 31, 2012	May 10, 2012	Dec. 31, 2011	May 10, 2012 Common Stock Closes Above $15.00 [Member]	May 10, 2012 Common Stock Closes Above $20.00 [Member]	Dec. 31, 2012 Black-Scholes Model Used to Value Warrants [Member]	May 10, 2012 Monte-Carlo Simulation Used To Value Derivative Assets And Liabilities [Member]	Dec. 31, 2012 Monte-Carlo Simulation Used To Value Derivative Assets And Liabilities [Member]	Dec. 29, 2008 Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements [Line Items]
Cash equivalents invested in money market funds	$ 256,702		$ 55,629
Issued warrants to purchase shares of common stock	6,099,476		1,038,161						179,241
Fair value of warrants issued	71,581
Dividend yield						0.00%
Volatility rate						116.49%	80.00%	85.00%
Risk-free interest rate						0.36%	1.035%	0.802%
Expected life						1 year 6 months
Closing stock price	$ 2.55						$ 3.4130	$ 2.55
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
Mandatory conversion minimum per Debentures agreement		$ 2,500,000