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STOCK-BASED COMPENSATION (Details) (USD $)
 9 Months Ended
Sep. 30, 2014
Number of options, outstanding  
Outstanding, beginning of period (in shares) 2,467
Granted (in shares) 467
Exercised (in shares) (97)
Cancelled (in shares) (163)
Outstanding, end of period (in shares) 2,674
Weighted average exercise price  
Outstanding, beginning of period (in dollars per share) $ 3.55
Granted (in dollars per share) $ 3.88
Exercised (in dollars per share) $ 2.16
Cancelled (in dollars per share) $ 4.97
Outstanding, end of period (in dollars per share) $ 3.66