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STOCKHOLDERS' EQUITY (Details 2) (USD $)
In Millions, except Share data, unless otherwise specified
 1 Months Ended
Sep. 30, 2012
Sep. 30, 2012
April 2006 stock issuance
Sep. 30, 2012
February 2007 stock issuance
Sep. 30, 2012
December 2007 CEFF
Sep. 30, 2012
July 2009 Series II stock issuance
Sep. 30, 2012
January 2010 stock issuance, one
Sep. 30, 2012
January 2010 stock issuance, two
Sep. 30, 2012
October 2010 stock issuance
Sep. 30, 2012
July 2011 stock issuance
Mar. 31, 2012
March 2012 Sale of Common Stock and Economic Rights
Common Stock                    
Net proceeds                   $ 2.9
Shares sold to investors under purchase agreement                   669,726
Price per share (in dollars per share)                   $ 4.53
Number of days used to calculate average closing price                   10 days
Amount to be paid as percentage of future litigation settlement amount received                   10.00%
Lock-up period from the date of issuance                   1 year
Common stock warrants                    
Warrants outstanding 1,973,432 367,347 151,773 14,286 98,894 101,786 100,714 594,514 544,118  
Weighted Average Exercise Price (in dollars per share) $ 22.96 $ 49.00 $ 59.08 $ 9.80 $ 7.00 $ 22.82 $ 19.95 $ 13.44 $ 9.52