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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income (Numerator) [Abstract]    
Net income as reported $ 4,637 $ 4,503
Basic EPS: Income available to common shareholders 4,637 4,503
Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,637 $ 4,503
Shares (Denominator) [Abstract]    
Basic EPS: Income available to common shareholders (in shares) 10,734,281 10,699,440
Effect of dilutive securities: restricted stock (in shares) 73,623 95,672
Diluted EPS: Income available to common shareholders plus assumed conversions (in shares) 10,807,904 10,795,112
Per-Share Amount [Abstract]    
Basic EPS: Income available to common shareholders (in dollars per share) $ 0.43 $ 0.42
Diluted EPS: Income available to common shareholders plus assumed conversions (in dollars per share) $ 0.43 $ 0.42