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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Earnings per share reconciliation
Information relating to the calculations of our income per common share is summarized as follows for the years ended December 31:

  
2017
  
2016
 
  
(dollars in thousands, except for per share data)
 
Weighted-average shares outstanding - basic
  
12,160,983
   
11,522,333
 
Dilution
  
116,753
   
52,559
 
Weighted-average share outstanding - diluted
  
12,277,736
   
11,574,892
 
         
Net income available to common stockholders
 
$
2,538
  
$
13,318
 
         
Net income per share - basic
 
$
0.21
  
$
1.16
 
Net income per share - diluted
 
$
0.21
  
$
1.15