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Stock Based Compensation Plan (Details) - $ / shares
 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding, Beginning of Period, in shares 401,442  
Granted, in shares 54,500  
Stock Options Exercised, in shares (3,027) (21,565)
Forfeited, in shares 0  
Outstanding, End of Period, in shares 452,915  
Exercisable at Period End, in shares 319,815  
Vested and Expected to Vest, in shares 133,100  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at Beginning of Period, in dollars per share $ 22.66  
Granted, in dollars per share 25.86  
Excercised, in dollars per share 22.78  
Forfeited, in dollars per share (0.00)  
Outstanding, End of Period, in dollars per share 23.04  
Exercisable at Period End, in dollars per share 22.11  
Vested and Expected to Vest, in dollars per share 25.28  
Fair Value, in dollars per share $ 5.78  
Dividend Yield 3.90%  
Expected Volatility 33.55%  
Risk Free Interest Rate 1.57%  
Expected Lives, in years 7 years 7 months 28 days