Securities Purchase Agreement (Details 1) (Series C-1 Preferred Stock [Member], USD $)	Dec. 31, 2012	Dec. 31, 2011
Series C-1 Preferred Stock [Member]
Embedded Derivatives
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