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STOCKHOLDERS' EQUITY (Tables)
12 Months Ended
Dec. 31, 2011
STOCKHOLDERS' EQUITY  
Schedule of warrants to purchase common stock outstanding and exercisable

 

Issue Date
  Number of
Underlying
Shares
Of Common
Stock
  Per Share
Exercise Price
  Expiration Date  

December 15, 2008

    50,000   $ 24.00     June 14, 2014  

July 21, 2009

    30,000   $ 12.00     July 20, 2012  

August 13, 2009

    400,000   $ 15.00     August 12, 2014  

August 13, 2009

    40,000   $ 15.00     June 9, 2014  

October 14, 2009

    65,874   $ 235.62     April 1, 2012  

March 8, 2010

    867,052   $ 12.48     September 8, 2015  

March 8, 2010

    34,682   $ 12.96     June 9, 2014  

June 23, 2010

    594,530   $ 14.70     June 23, 2015  

June 23, 2010

    35,671   $ 15.78     June 9, 2015  

November 22, 2010

    30,000   $ 12.00     November 21, 2013  

December 30, 2010

    882,353   $ 12.00     December 30, 2015  

December 30, 2010

    52,941   $ 12.75     June 9, 2015  

March 8, 2011

    670,971   $ 13.50     March 8, 2014  

March 8, 2011

    40,665   $ 15.48     June 9, 2014