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Note 14 - Net Income Per Share (Tables)
 12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Year Ended December 31,
 
 
 
20
15
 
 
20
14
 
Numerator:
                
Net income attributable to SPAR Group, Inc.
 
$
892
 
   $ 3,268  
                 
Denominator:
                
Shares used in basic net income per share calculation
 
 
20,559
 
     20,578  
Effect of diluted securities:
                
Stock options and unvested restricted shares
 
 
1,014
 
     1,252  
Shares used in diluted net income per share calculations
 
 
21,573
 
     21,830  
                 
Basic net income per common share:
 
$
0.04
 
   $ 0.16  
Diluted net income per common share:
 
$
0.04
 
   $ 0.15