Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measures (Details 3)

v2.4.0.8
Fair Value Measures (Details 3) (USD $)
6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Feb. 22, 2013
2011 Warrants
Black-Scholes-Merton option-pricing model
Jun. 30, 2013
2011 Warrants
Black-Scholes-Merton option-pricing model
Dec. 31, 2012
2011 Warrants
Black-Scholes-Merton option-pricing model
Feb. 22, 2013
2012 Warrants - $0.15 Warrants
Black-Scholes-Merton option-pricing model
Jun. 30, 2013
2012 Warrants - $0.15 Warrants
Black-Scholes-Merton option-pricing model
Dec. 31, 2012
2012 Warrants - $0.15 Warrants
Black-Scholes-Merton option-pricing model
Dec. 31, 2012
2012 Warrants - $0.25 Warrants
Black-Scholes-Merton option-pricing model
Jan. 16, 2013
Third Tranche Warrants
Black-Scholes-Merton option-pricing model
Feb. 22, 2013
2013 Warrants
Monte Carlo simulation model
item
Jun. 30, 2013
2013 Warrants
Monte Carlo simulation model
item
Jun. 30, 2013
2013 SPA Option
Feb. 22, 2013
2013 SPA Option
Black-Scholes-Merton option-pricing model
Jun. 30, 2013
2013 SPA Option
Black-Scholes-Merton option-pricing model
Feb. 22, 2013
2013 SPA Option
Monte Carlo simulation model
item
Jun. 30, 2013
2013 SPA Option
Monte Carlo simulation model
item
Jun. 30, 2013
2011 Convertible Notes
Feb. 22, 2013
2011 Convertible Notes
Binomial lattice model
Jun. 30, 2013
2011 Convertible Notes
Binomial lattice model
Dec. 31, 2012
2011 Convertible Notes
Binomial lattice model
Feb. 22, 2013
2012 Convertible Notes
Binomial lattice model
Jun. 30, 2013
2012 Convertible Notes
Binomial lattice model
Dec. 31, 2012
2012 Convertible Notes
Binomial lattice model
Feb. 22, 2013
Third Tranche Convertible Notes
Binomial lattice model
Jan. 16, 2013
Third Tranche Convertible Notes
Binomial lattice model
Jun. 30, 2013
Third Tranche Convertible Notes
Binomial lattice model
Valuation - Methodology and Significant Inputs Assumptions                                                      
Number of shares of common stock issuable for each option                         1                            
Number of common stock warrants issuable for each option                         1                            
Input                                                      
Stock Price (in dollars per share)     $ 0.14 $ 0.10 $ 0.15 $ 0.14 $ 0.10 $ 0.15 $ 0.15 $ 0.15 $ 0.12 $ 0.09   $ 0.14 $ 0.10 $ 0.10 $ 0.11   $ 0.14 $ 0.10 $ 0.15 $ 0.14 $ 0.10 $ 0.15 $ 0.14 $ 0.15 $ 0.10
Exercise Price (in dollars per share)     $ 0.15 $ 0.098 $ 0.15 $ 0.15 $ 0.098 $ 0.15 $ 0.25 $ 0.15 $ 0.20 $ 0.20   $ 0.15 $ 0.15 $ 0.20 $ 0.20   $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10
Expected Life     3 years 2 years 7 months 24 days 3 years 1 month 24 days 4 years 4 months 17 days 4 years 4 days 4 years 6 months 4 years 6 months 5 years 5 years 4 years 7 months 24 days   9 months 4 months 20 days 5 years 5 years   2 years 4 months 6 days 2 years 1 year 1 month 24 days 2 years 4 months 6 days 2 years 4 days 2 years 6 months 2 years 10 months 24 days 3 years 2 years 6 months 18 days
Stock Volatility (as a percent)     100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 110.00% 110.00% 110.00%   110.00% 110.00% 110.00% 110.00%   100.00% 100.00% 105.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%
Risk-Free Rate (as a percent)     0.40% 0.31% 0.39% 0.70% 1.04% 0.63% 0.63% 0.75% 0.84% 1.28%   0.15% 0.07% 1.158% 1.633%   0.32% 0.36% 0.17% 0.32% 0.36% 0.31% 0.39% 0.36% 0.52%
Dividend Rate (as a percent)     0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%       0.00% 0.00%       0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Number of Steps                     100,000 100,000       100,000 100,000                    
Outstanding Shares of Common Stock 66,480,000 32,434,000 59,576,097 66,480,399 32,434,430 59,576,097 66,480,399 32,434,430 32,434,430 32,434,430 59,576,097 66,480,399   73,042,764 79,947,066       59,576,097 66,480,399 32,434,430 59,576,097 66,480,339 32,434,430 59,576,097 32,434,430 66,480,399
Effective discount rate (as a percent)                                     13.20% 13.20% 13.10% 13.20% 13.20% 13.20% 13.20% 13.20% 13.20%
Probability of forced redemption (as a percent)                                     20.00% 20.00% 20.00% 20.00% 20.00% 20.00% 20.00% 20.00% 20.00%
Redemption amount due pursuant to clause (II) $ 0                                                    
Percentage of outstanding principal redeemed under a change of control, used as valuation assumption 130.00% 130.00%                               130.00%                  
Percentage of accrued and unpaid interest, used as valuation assumption 100.00% 100.00%                               100.00%