Securities Purchase Agreement (Details 3) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Series C2 warrants using binomial option pricing
Time to Exercise (months)
Series C-2 Warrants [Member]
Series C2 warrants using binomial option pricing
Closing price per share of Common Stock		$ 0.27
Conversion price per share		$ 0.60
Volatility		88.00%
Risk-free interest rate		0.83%
Credit spread		20.90%
Remaining expected lives of underlying securities (years)		5 years
Time to Exercise (months)		24 months