Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Stock Option Activity) (Details)

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EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Stock Option Activity) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Summary of stock option activity      
Number of Stock Options, Outstanding beginning balance 389,269    
Weighted Average Exercise Price, Outstanding beginning balance $ 16.69    
Number of Stock Options, Outstanding ending balance 298,743 389,269  
Weighted Average Exercise Price, Outstanding ending balance $ 16.40 $ 16.69  
Number of Stock Options, Granted   0  
Number of Stock Options, Exercised (60,637) (75,282) (50,119)
Weighted Average Exercise Price, Exercised $ 14.98    
Number of Stock Options, Forfeited (3,009)    
Weighted Average Exercise Price, Forfeited $ 13.83    
Number of Stock Options, Expired (26,880)    
Weighted Average Exercise Price, Expired $ 23.12    
Weighted Average Remaining Contractual Life, Outstanding 4 years 2 months 16 days    
Aggregate Intrinsic Value, Outstanding $ 2,793,148 $ 3,100,000 $ 3,500,000
Number of Stock Options, Exercisable 243,054    
Weighted Average Exercise Price, Exercisable $ 17.04    
Weighted Average Remaining Contractual Life, Exercisable 3 years 9 months 29 days    
Aggregate Intrinsic Value, Exercisable $ 2,147,472