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Note 3 - Earnings Per Share
 9 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Earnings Per Share [Text Block]
3.
Earnings Per Share
 
The following table sets forth the computations of basic and diluted net income (loss) per share (in thousands, except per share data):
 
   
Three Months Ended
    
Nine Months Ended
  
   
September 30,
    
September 30,
  
   
2019
    
2018
    
2019
    
2018
  
Numerator:
                                
Net income (loss) attributable to SPAR Group, Inc.
   $
907
     $
621
     $
3,045
     $
(1,018
 )
                                 
Denominator:
                                
Weighted average shares used in basic net income per share calculation
    
20,975
      
20,654
      
20,856
      
20,650
  
                                 
Weighted average shares used in diluted net income per share calculation
    
21,061
      
21,320
      
21,096
      
20,650
  
                                 
Basic and diluted net income (loss) per common share
   $
0.04
     $
0.03
     $
0.15
     $
(0.05
 )