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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income (Numerator) [Abstract]        
Net income as reported $ 7,095 $ 6,288 $ 20,159 $ 18,839
Basic EPS: Income available to common shareholders 7,095 6,288 20,159 18,839
Diluted EPS: Income available to common shareholders plus assumed conversions $ 7,095 $ 6,288 $ 20,159 $ 18,839
Shares (Denominator) [Abstract]        
Basic EPS: Income available to common shareholders (in shares) 10,863,315 10,818,423 10,854,384 10,811,233
Effect of dilutive securities: restricted stock (in shares) 76,544 75,493 73,285 75,013
Diluted EPS: Income available to common shareholders plus assumed conversions (in shares) 10,939,859 10,893,916 10,927,669 10,886,246
Per-Share Amount [Abstract]        
Basic EPS: Income available to common shareholders (in dollars per share) $ 0.65 $ 0.58 $ 1.86 $ 1.74
Diluted EPS: Income available to common shareholders plus assumed conversions (in dollars per share) $ 0.65 $ 0.58 $ 1.84 $ 1.73