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STOCKHOLDERS' EQUITY (Details 4) (USD $)
Mar. 31, 2013
Warrants outstanding  
Warrants outstanding 1,973,427
Weighted Average Exercise Price (in dollars per share) $ 22.96
April 2006 stock issuance
 
Warrants outstanding  
Warrants outstanding 367,347
Weighted Average Exercise Price (in dollars per share) $ 49.00
February 2007 stock issuance
 
Warrants outstanding  
Warrants outstanding 151,773
Weighted Average Exercise Price (in dollars per share) $ 59.08
December 2007 Committed Equity Financing Facility
 
Warrants outstanding  
Warrants outstanding 14,285
Weighted Average Exercise Price (in dollars per share) $ 9.80
July 2009 Series II stock issuance
 
Warrants outstanding  
Warrants outstanding 98,893
Weighted Average Exercise Price (in dollars per share) $ 7.00
January 2010 stock issuance, one
 
Warrants outstanding  
Warrants outstanding 101,785
Weighted Average Exercise Price (in dollars per share) $ 22.82
January 2010 stock issuance, two
 
Warrants outstanding  
Warrants outstanding 100,714
Weighted Average Exercise Price (in dollars per share) $ 19.95
October 2010 stock issuance
 
Warrants outstanding  
Warrants outstanding 594,513
Weighted Average Exercise Price (in dollars per share) $ 13.44
July 2011 stock issuance
 
Warrants outstanding  
Warrants outstanding 544,117
Weighted Average Exercise Price (in dollars per share) $ 9.52