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FAIR VALUE MEASUREMENTS (Details) (Recurring basis, USD $)
Sep. 30, 2012
Dec. 31, 2011
Level 1
    
ASSETS    
Cash equivalents   $ 19,894,000
Total assets   19,894,000
Level 2
    
ASSETS    
Cash equivalents 14,592,000  
Total assets 14,592,000  
Level 3
    
LIABILITIES    
Economic rights 1,070,000  
Warrants   (51,000)
Scottish Enterprise agreement 20,000 20,000
Other liabilities measured at fair value 20,000 (20,000)
Total liabilities 1,090,000 71,000
Total
    
ASSETS    
Cash equivalents   19,894,000
Total assets   19,894,000
LIABILITIES    
Economic rights 1,070,000  
Warrants   (51,000)
Scottish Enterprise agreement 20,000 20,000
Other liabilities measured at fair value 20,000 (20,000)
Total liabilities $ 1,090,000 $ 71,000