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Earnings Per Common Share (Tables)
6 Months Ended
Jun. 30, 2018
Earnings Per Common Share [Abstract]  
Schedule of earnings per share calculation
         
     Three months ended      Six months ended
June 30, June 30,
(dollars in thousands, except share data) 2018      2017 2018      2017
Numerator:
Net income available to common shareholders $ 5,510 3,604 10,724 6,716
Denominator:
Weighted-average common shares outstanding – basic 7,370,709 6,986,948 7,353,867 6,713,608
Common stock equivalents 380,437 379,260 385,215 385,773
Weighted-average common shares outstanding – diluted 7,751,146 7,366,208 7,739,082 7,099,381
Earnings per common share:
Basic $      0.75 0.52 1.46 1.00
Diluted $ 0.71 0.49 1.39 0.95