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STOCK-BASED COMPENSATION - Activity for restricted stock (Details 1) (USD $)
9 Months Ended
Sep. 30, 2014
Number of Shares  
Unvested at beginning of period 122,140
Granted 10,510
Vested (6,456)
Forfeited (49,916)
Unvested at end of period 76,278
Weighted Average Grant Date Fair Value  
Unvested at beginning of period $ 15.98
Granted $ 17.12
Vested $ 14.66
Forfeited $ 15.89
Unvested at end of period $ 16.31