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FAIR VALUE (Details) (Recurring basis, USD $)
Jun. 30, 2014
Dec. 31, 2013
Level 1
    
ASSETS    
Cash equivalents $ 22,677,000 $ 26,476,000
Financial instrument associated with stock purchase agreement      
Total assets 22,677,000 26,476,000
Other liabilities measured at fair value:    
Scottish Enterprise agreement     
Other liabilities measured at fair value     
Total liabilities     
Level 2
    
ASSETS    
Cash equivalents      
Financial instrument associated with stock purchase agreement 286,000 397,000
Total assets 286,000 397,000
Other liabilities measured at fair value:    
Scottish Enterprise agreement     
Other liabilities measured at fair value     
Total liabilities     
Level 3
    
ASSETS    
Cash equivalents      
Financial instrument associated with stock purchase agreement      
Total assets      
Other liabilities measured at fair value:    
Scottish Enterprise agreement   20,000
Other liabilities measured at fair value   20,000
Total liabilities   20,000
Total
    
ASSETS    
Cash equivalents 22,677,000 26,476,000
Financial instrument associated with stock purchase agreement 286,000 397,000
Total assets 22,963,000 26,873,000
Other liabilities measured at fair value:    
Scottish Enterprise agreement   20,000
Other liabilities measured at fair value   20,000
Total liabilities   $ 20,000