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Earnings per share (Tables)
 9 Months Ended
Sep. 30, 2021
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
    
Nine Months Ended
  
 
September 30,
    
September 30,
  
   
2021
    
2020
    
2021
    
2020
  
   
(In thousands, except per share data)
  
Net income (loss)
  
$
910
    
$
(867
)
  
$
(3,410
)
  
$
(3,712
)
                                 
Shares:
                                
Basic:  Weighted average common shares outstanding
    
9,408
      
7,548
      
9,112
      
7,533
  
Add:  Dilutive effect of outstanding options and restricted stock units as determined by the treasury stock method
    
438
      
–
      
–
      
–
  
Diluted:  Weighted average common and common equivalent shares outstanding
    
9,846
      
7,548
      
9,112
      
7,533
  
                                 
Net income (loss) per common share:
                                
Basic
  
$
0.10
    
$
(0.11
)
  
$
(0.37
)
  
$
(0.49
)
Diluted
  
$
0.09
    
$
(0.11
)
  
$
(0.37
)
  
$
(0.49
)