Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details 2)

v2.4.0.6
STOCK-BASED COMPENSATION (Details 2) (USD $)
 12 Months Ended 98 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Outstanding - Number of Shares Issuable Upon Exercise of Outstanding Options, Beginning Balance 4,827,638 769,189 0
Canceled - Number of Shares Issuable Upon Exercise of Outstanding Options   (769,189) (222,547)
Options acquired in connection with a business combination - Number of Shares Issuable Upon Exercise of Outstanding Options   49,159  
Granted - Number of Shares Issuable Upon Exercise of Outstanding Options 1,956,650 5,226,500 1,013,583
Canceled - Number of Shares Issuable Upon Exercise of Outstanding Option (1,666) (9,992)  
Forfeited - Number of Shares Issuable Upon Exercise of Outstanding Options (343,434) (438,029) (21,847)
Outstanding - Number of Shares Issuable Upon Exercise of Outstanding Options, Ending Balance 6,439,188 4,827,638 769,189
Vested - Number of Shares Issuable Upon Exercise of Outstanding Options 2,352,974    
Unvested - Number of Shares Issuable Upon Exercise of Outstanding Options 4,086,214    
Exercisable - Number of Shares Issuable Upon Exercise of Outstanding Options 2,352,974    
Outstanding - Weighted Average Exercise Price, Beginning Balance (in dollars per share) $ 1.82 $ 2.69  
Canceled - Weighted Average Exercise Price (in dollars per share)   $ 2.69 $ 2.63
Options acquired in connection with a business combination - Weighted Average Exercise Price (in dollars per share)   $ 100.52  
Granted - Weighted Average Exercise Price (in dollars per share) $ 0.75 $ 1.16 $ 2.36
Canceled - Weighted Average Exercise Prices (in dollars per share) $ 0.45 $ 115.16  
Forfeited - Weighted Average Exercise Price (in dollars per share) $ 1.38 $ 2.44 $ 2.91
Outstanding - Weighted Average Exercise Price, Ending Balance (in dollars per share) $ 1.52 $ 1.82 $ 2.69
Vested - Weighted Average Exercise Price (in dollars per share) $ 2.63    
Unvested - Weighted Average Exercise Price (in dollars per share) $ 0.88    
Exercisable - Weighted Average Exercise Price (in dollars per share) $ 2.63    
Vested - Weighted Average Remaining Contracted Term in Years 8 years 5 months 19 days    
Unvested - Weighted Average Remaining Contracted Term in Years 9 years 3 months 4 days    
Exercisable - Weighted Average Remaining Contracted Term in Years 8 years 5 months 19 days    
Vested - Aggregate Intrinsic Value (in dollars) $ 161,799    
Unvested - Aggregate Intrinsic Value (in dollars) 258,730    
Exercisable - Aggregate Intrinsic Value (in dollars) $ 161,799