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Earnings Per Common Share (Tables)
12 Months Ended
Dec. 31, 2018
Earnings Per Common Share [Abstract]  
Schedule of earnings per share calculation

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December 31,
(dollars in thousands, except share data)     2018     2017     2016
Numerator:
Net income$22,28913,04513,036
Net income available to common shareholders$22,28913,04513,036
Denominator:
Weighted-average common shares outstanding - basic7,384,2007,005,7036,318,322
Common stock equivalents353,295387,674402,566
Weighted-average common shares outstanding - diluted7,737,4957,393,3776,720,888
Earnings per common share:
Basic$3.021.862.06
Diluted$2.881.761.94