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Earnings Per Share - Schedule of Basic and Diluted Earnings per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Income (Numerator) [Abstract]        
Net income as reported $ 6,288 $ 5,933 $ 18,839 $ 17,173
Basic EPS: Income available to common shareholders 6,288 5,933 18,839 17,173
Diluted EPS: Income available to common shareholders plus assumed conversions $ 6,288 $ 5,933 $ 18,839 $ 17,173
Shares (Denominator) [Abstract]        
Basic EPS: Income available to common shareholders (in shares) 10,818,423 10,785,528 10,811,233 10,780,277
Effect of dilutive securities: restricted stock (in shares) 75,493 69,515 75,013 69,515
Diluted EPS: Income available to common shareholders plus assumed conversions (in shares) 10,893,916 10,855,043 10,886,246 10,849,792
Per-Share Amount [Abstract]        
Basic EPS: Income available to common shareholders (in dollars per share) $ 0.58 $ 0.55 $ 1.74 $ 1.59
Diluted EPS: Income available to common shareholders plus assumed conversions (in dollars per share) $ 0.58 $ 0.55 $ 1.73 $ 1.58