Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Stock Option Activity) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Stock Options (shares)      
Number of Stock Options, Outstanding beginning balance 298,743    
Number of Stock Options, Granted 0    
Number of Stock Options, Exercised (88,409) (60,637) (75,282)
Number of Stock Options, Forfeited 0    
Number of Stock Options, Expired (22,074)    
Number of Stock Options, Outstanding ending balance 188,260 298,743  
Number of Stock Options, Exercisable 170,466    
Weighted Average Exercise Price      
Weighted Average Exercise Price, Outstanding (in dollars per share) $ 14.94 $ 16.40  
Weighted Average Exercise Price, Granted (in dollars per share) 0.00    
Weighted Average Exercise Price, Exercised (in dollars per share) 16.10    
Weighted Average Exercise Price, Forfeited (in dollars per share) 0.00    
Weighted Average Exercise Price, Expired (in dollars per share) 30.12    
Weighted Average Exercise Price, Exercisable (in dollars per share) $ 15.00    
Weighted Average Remaining Contractual Life, Outstanding 3 years 8 months 1 day    
Weighted Average Remaining Contractual Life, Exercisable 3 years 6 months 11 days    
Aggregate Intrinsic Value, Outstanding $ 3,915,988 $ 2,800,000 $ 3,100,000
Aggregate Intrinsic Value, Exercisable $ 3,536,264