STOCK BASED COMPENSATION (Details 2) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stock Options
     
Share - based compensation disclosures      
Award expiration period 10 years    
Award vesting period 5 years    
Compensation expense $ 1,600,000 $ 1,400,000 $ 1,200,000
Summary of stock option activity      
Number of Options, Beginning balance (in shares) 2,333,300 2,086,100  
Weighted Exercise Price per Shares, Beginning balance (in dollars per share) $ 10.34 $ 10.74  
Options, granted (in shares) 609,500 586,000  
Weighted Exercise Price per Shares, granted (in dollars per share) $ 9.24 $ 9.12  
Number of Options, exercised (in shares) (19,200) (12,050)  
Weighted Exercise Price per Shares, exercised (in dollars per share) $ 8.74 $ 8.36  
Number of Options, forfeited (in shares) (20,650) (179,680)  
Weighted Exercise Price per Shares, forfeited (in dollars per share) $ 9.42 $ 10.22  
Number of Options, expired (in shares) (26,100) (147,070)  
Weighted Exercise Price per Shares, expired (in dollars per share) $ 11.03 $ 11.39  
Number of Options, Ending balance (in shares) 2,876,850 2,333,300 2,086,100
Weighted Exercise Price per Shares, Ending balance (in dollars per share) $ 10.12 $ 10.34 $ 10.74
Options, additional disclosures      
Weighted average remaining contractual term of options outstanding 6 years 7 months 20 days 7 years  
Aggregate intrinsic value of options outstanding 3,300,000 730,000  
Exercisable options (in shares) 1,552,040 1,132,860  
Average weighted exercise price of exercisable options (in dollars per share) $ 11.00 $ 11.24  
Weighted average remaining contractual term of exercisable options 5 years 2 months 19 days 5 years 10 months 28 days  
Aggregate intrinsic value of exercisable options 911,000 175,000  
Period for recognizing unrecognized compensation 3 years 4 months 24 days 3 years 3 months  
Stock awards
     
Options, additional disclosures      
Unrecognized compensation cost related to options 3,600,000 3,200,000  
Unrecognized compensation cost related non-vested stock awards granted under EIP $ 2,500,000 $ 3,300,000  
Period for recognizing unrecognized compensation 3 years 2 months 23 days 2 years 9 months 11 days