v2.4.0.8
STOCK BASED COMPENSATION - Summary of warrant activity for accredited investors (Details 2) (Warrant, Accredited investors, USD $)
 6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Warrant | Accredited investors
            
Warrants Number Of Shares [Roll Forward]            
Number of shares, Outstanding, Beginning balance 16,243,622 7,191,225 5,741,225 785,001     
Number of shares, Granted 29,711,500 10,954,063 1,450,000 4,956,224    
Number of shares, Modified warrants prior to modifications     (7,191,225)      
Number of shares, Modified warrants after modifications     7,191,225      
Number of shares, Exercised               
Number of shares, Forfeited               
Number of shares, Expired (4,164,547) (1,901,666)          
Number of shares, Outstanding, Ending balance 41,790,575 16,243,622 7,191,225 5,741,225     
Number of shares, Exercisable 41,790,575 16,243,622 7,191,225 5,741,225 785,001  
Weighted Average Exercise Price Per Share [Roll Forward]            
Weighted average exercise price per share, Outstanding, Beginning balance $ 0.52 $ 0.69 $ 0.80 $ 0.80     
Weighted average exercise price per share, Granted $ 0.15 $ 0.40 $ 0.50 $ 0.80    
Weighted average exercise price per share, Modified warrants prior to modifications     $ 0.74      
Weighted average exercise price per share, Modified warrants after modifications     $ 0.69      
Weighted average exercise price per share, Exercised               
Weighted average exercise price per share, Forfeited               
Weighted average exercise price per share, Expired $ 0.80 $ 0.76          
Weighted average exercise price per share, Outstanding, Ending balance $ 0.31 $ 0.52 $ 0.69 $ 0.80     
Weighted average exercise price per share, Exercisable $ 0.31 $ 0.52 $ 0.69 $ 0.80 $ 0.80  
Weighted Average Grant Fair Value Per Share [Roll Forward]            
Weighted average grant date fair value per share, Outstanding, Beginning balance $ 0.07 $ 0.10 $ 0.11 $ 0.11     
Weighted average grant date fair value per share, Granted $ 0.02 $ 0.05 $ 0.06 $ 0.11    
Weighted average grant date fair value per share, Modified warrants prior to modifications     $ 0.10      
Weighted average grant date fair value per share, Modified warrants after modifications     $ 0.10      
Weighted average grant date fair value per share, Exercised               
Weighted average grant date fair value per share, Forfeited               
Weighted average grant date fair value per share, Expired $ 0.11 $ 0.13          
Weighted average grant date fair value per share, Outstanding, Ending balance $ 0.05 $ 0.07 $ 0.10 $ 0.11     
Weighted average grant date fair value per share, Exercisable $ 0.05 $ 0.07 $ 0.10 $ 0.11 $ 0.11