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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Net Loss Per Share        
Potential dilutive securities excluded from diluted loss per share calculation (in shares) 1,926,886 138,344 3,205,962 7,183
Minimum
       
Marketable securities        
Original maturity period of marketable securities     5 months  
Maximum
       
Marketable securities        
Original maturity period of marketable securities     19 months