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Earnings per share (Tables)
 6 Months Ended
Jun. 30, 2020
Earnings per share [Abstract]  
Earnings per share
The following table sets forth the reconciliation of basic weighted average shares outstanding and diluted weighted average shares outstanding:

  
Three Months Ended
June 30,
    
Six Months Ended
June 30,
  
   
2020
    
2019
    
2020
    
2019
  
   
(In thousands, except per share data)
  
Net (loss) income
  
$
(1,853
)
  
$
186
    
$
(2,845
)
  
$
932
  
                                 
Shares:
                                
Basic:  Weighted average common shares outstanding
    
7,543
      
7,462
      
7,525
      
7,461
  
Add:  Dilutive effect of outstanding options and restricted stock units as determined by the treasury stock method
    
–
      
135
      
–
      
146
  
Diluted:  Weighted average common and common equivalent shares outstanding
    
7,543
      
7,597
      
7,525
      
7,607
  
                                 
Net (loss) income per common share:
                                
Basic
  
$
(0.25
)
  
$
0.02
    
$
(0.38
)
  
$
0.12
  
Diluted
  
$
(0.25
)
  
$
0.02
    
$
(0.38
)
  
$
0.12