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FAIR VALUE (Details) (Recurring basis, USD $)
Mar. 31, 2014
Dec. 31, 2013
Level 1
    
ASSETS    
Cash equivalents $ 22,648,000 $ 26,476,000
Financial instrument associated with stock purchase agreement      
Total assets 22,648,000 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 350,000 397,000
Total assets 350,000 397,000
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 20,000
Other liabilities measured at fair value 20,000 20,000
Total liabilities 20,000 20,000
Total
    
ASSETS    
Cash equivalents 22,648,000 26,476,000
Financial instrument associated with stock purchase agreement 350,000 397,000
Total assets 22,998,000 26,873,000
Other liabilities measured at fair value:    
Scottish Enterprise agreement 20,000 20,000
Other liabilities measured at fair value 20,000 20,000
Total liabilities $ 20,000 $ 20,000